Costs & coverage · Pitkin County, Colorado · Plan year 2026
Medicare and ambulance rides in 2026: what a ground or air ambulance costs in Pitkin County
Part B covers the ride when other transportation would endanger your health. The rules that decide your bill are the pickup ZIP code, the level of service, the loaded miles — and a federal rule that stops the ambulance company from billing you anything beyond the deductible and coinsurance.
The bottom line
- It is a Part B benefit. After the $283 deductible you pay 20% of the Medicare-approved amount — and under Original Medicare alone, that 20% has no annual ceiling.
- An ambulance company cannot balance bill you on a covered trip. Federal law requires mandatory assignment: they must take the Medicare allowed charge as payment in full and can collect nothing but your deductible and coinsurance.
- The risk is a non-covered trip, not a big charge. If the transport fails Medicare's medical necessity test, you can owe the whole bill — which is what the Advance Beneficiary Notice is warning you about.
- Your ZIP code sets the price. In CMS's ambulance ZIP file, Aspen, Snowmass Village, Basalt, Carbondale, Glenwood Springs, Rifle, Montrose, Delta and Ouray are all flagged super rural — worth 22.6% on the ground base rate. Grand Junction and Fruita are urban.
- Air ambulance is covered, narrowly. It has to be a case where ground transport could not do the job — and CMS's own guideline treats a 30–60 minutes ground run as the point where air becomes appropriate.
- Who is exposed: 88.2% of Pitkin County's 3,343 Medicare beneficiaries are on Original Medicare — the highest share of any county on the Western Slope (CMS, CY 2025).
The short answer
Medicare Part B covers ambulance transportation — ground and, in narrow circumstances, air — when your medical condition makes any other way of travelling unsafe, and only to the nearest facility that can treat you. You pay the $283 Part B deductible once for the calendar year, then 20% of the Medicare-approved amount. Medicare pays the rest.
Three things then decide the number on your statement. The level of service the crew documented, because a basic life support run and a specialty care transport are priced very differently. The loaded mileage — miles you were actually in the vehicle. And the ZIP code where you were picked up, which Medicare requires on every ambulance claim and which can move the base rate by more than a fifth.
For context on the other 2026 numbers sitting alongside it: the standard Part B premium is $202.90 a month, and the Part A inpatient hospital deductible is $1,736 per benefit period. Those are separate bills. The ambulance coinsurance rides on top.
What is not on that list is the ambulance company's sticker price. On a covered Medicare trip they are legally required to accept Medicare's amount as payment in full. That is the good news, and most people out here have never been told it.
Sources: Medicare.gov — Ambulance services coverage · Medicare.gov — Medicare costs · eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule). Plan year 2026, retrieved September 2026.
Sources: Medicare.gov — Medicare costs · eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule) · CMS — Medicare Monthly Enrollment (data.cms.gov), calendar year 2025. Plan year 2026.
When is an ambulance actually covered?
The federal rule is one sentence long. Under 42 CFR 410.40(e), Medicare covers ambulance services, including fixed wing and rotary wing services, "only if they are furnished to a beneficiary whose medical condition is such that other means of transportation are contraindicated." Your condition has to require both the ambulance itself and the level of service billed.
For an emergency, that test is usually met and nobody thinks about it again. For a non-emergency it is where the money goes wrong. The regulation says bed confinement — unable to get up from bed without help, unable to walk, unable to sit in a chair or wheelchair — is one factor and not the sole criterion. Someone who is not bed-confined can still qualify if their condition otherwise makes ambulance transport medically required.
Three more coverage points that catch people:
- No transport, no benefit. CMS's Benefit Policy Manual is blunt: "The Medicare ambulance benefit is a transportation benefit and without a transport there is no payable service." A crew that responds, assesses you and leaves you at home has generally not furnished a payable ambulance service. If several agencies respond, only the one that actually transports you is paid.
- Scheduled repeat trips need paperwork in advance. For non-emergency, scheduled, repetitive transports the company must obtain a physician certification statement dated no earlier than 60 days before the trip. And if you are getting three or more round trips in 10 days, or at least weekly for three weeks or more, Medicare.gov says the company may need prior authorization before your fourth trip in 30 days.
- The ABN is a real decision, not a formality. In a non-emergency where the company believes Medicare may not pay, it must give you an Advance Beneficiary Notice of Noncoverage. Signing it accepts financial responsibility if the claim is denied. You can ask them to bill Medicare anyway so you get a formal denial you can appeal.
Sources: eCFR — 42 CFR 410.40, coverage of ambulance services, paragraphs (b), (e) and (f) · Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS), §10 · Medicare.gov — Ambulance services coverage. Retrieved September 2026.
Why "the nearest appropriate facility" decides your bill
Medicare covers transport "from any point of origin to the nearest hospital, CAH, rural emergency hospital (REH), or SNF that is capable of furnishing the required level and type of care for the beneficiary's illness or injury." Go somewhere farther by choice and Medicare's payment is capped at what the nearer trip would have cost. In a valley where the next hospital can be an hour away, that cap is not theoretical.
CMS defines the two governing terms carefully, and the distinction is worth knowing before you are the one deciding.
- "Appropriate facilities" means the institution is generally equipped to provide the care your illness or injury needs, and that a physician or specialist is available to treat your condition. Critically: "The fact that a more distant institution is better equipped, either qualitatively or quantitatively, to care for the patient does not warrant a finding that a closer institution does not have 'appropriate facilities.'" But it is warranted "if the beneficiary's condition requires a higher level of trauma care or other specialized service available only at the more distant hospital." That is the sentence that pays for a run down valley for trauma, cardiac or burn care.
- "Locality" means the service area around a hospital that people normally travel to for care — and CMS gives the discretion to define it to the Medicare contractor. CMS's own example is a small community with a 35-bed hospital and two larger hospitals "some distance" away that regularly serve the community's residents; all three are within the locality, and direct ambulance transport to any of them is covered.
- Preference is not a coverage reason. Transport to a more distant hospital "solely to avail a patient of the service of a specific physician or physician specialist" does not make that hospital the nearest one with appropriate facilities. Neither does a family's preference. A full facility with no bed available, however, is not an appropriate facility.
Sources: eCFR — 42 CFR 410.40, coverage of ambulance services, paragraph (f) · Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS), §§10.3.5, 10.3.6 and 10.4.4. Retrieved September 2026.
Can the ambulance company bill you the difference?
On a covered Medicare transport, no. This is the protection worth carrying around in your head, because ground ambulance bills are a national sore point and the headlines rarely separate Medicare from everything else.
The rule is 42 CFR 414.610(b), mandatory assignment. Since April 1, 2002, all payments for ambulance services "are made only on an assignment-related basis." Ambulance suppliers "must accept the Medicare allowed charge as payment in full and may not bill or collect from the beneficiary any amount other than the unmet Part B deductible and Part B coinsurance amounts." Violations can subject the supplier to sanctions. There is no participating-versus-non-participating fork here the way there is with medical equipment or doctors — every ambulance supplier is required to take assignment.
That matters because the wider ground ambulance market has no such rule. The federal No Surprises Act protects people in group and individual health plans from surprise air ambulance bills but generally does not cover ground ambulance, which is why Congress created a federal advisory committee on ground ambulance and patient billing to recommend fixes. If you are on Original Medicare, you are already standing behind a stronger wall than that committee is trying to build.
The real exposure is different in shape: a trip Medicare does not cover at all. Mandatory assignment applies to covered services. If a non-emergency transport fails the medical necessity test and is denied, the protection does not apply and the full charge can land on you. That is exactly the situation the Advance Beneficiary Notice exists to flag — and exactly the situation worth appealing.
Sources: eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule), paragraph (b) · Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS), §20.1 · CMS — Advisory Committee on Ground Ambulance and Patient Billing (GAPB) · CMS — Action plan: ground ambulance bill (medical bill rights). Retrieved September 2026.
Wondering what would actually happen to you after a bad day? The 20% coinsurance is the same for everyone — what differs is whether anything sits behind it. We will look at what you have now and walk through how a Medicare Supplement policy or a Medicare Advantage out-of-pocket maximum would change the arithmetic. Free, no pressure, education first.
What Medicare pays in Colorado in 2026
Ambulance payment is not a mystery you have to guess at. CMS publishes the fee schedule as a public file, broken out by Medicare contractor and locality. Colorado is a single locality — contractor 04112, locality 01, geographic adjustment factor 1.064. The 2026 conversion factor is $284.56, and each ground level of service has a fixed relative value: basic life support is 1.00, specialty care transport is 3.25.
Here are Colorado's actual CY 2026 amounts. The three columns are the three point-of-pickup designations, and the add-ons are already baked in.
| Level of service | Code | RVU | Urban pickup | Rural pickup | Super rural pickup |
|---|---|---|---|---|---|
| BLS, emergency | A0429 | 1.60 | $485.21 | $489.96 | $600.69 |
| BLS, non-emergency | A0428 | 1.00 | $303.25 | $306.23 | $375.44 |
| ALS level 1, emergency | A0427 | 1.90 | $576.18 | $581.83 | $713.32 |
| ALS level 1, non-emergency | A0426 | 1.20 | $363.90 | $367.47 | $450.52 |
| ALS level 2 | A0433 | 2.75 | $833.95 | $842.12 | $1,032.44 |
| Specialty care transport | A0434 | 3.25 | $985.58 | $995.24 | $1,220.16 |
| Fixed wing air, one way | A0430 | — | $3,985.19 | $5,977.78 | n/a |
| Rotary wing air, one way | A0431 | — | $4,633.38 | $6,950.08 | n/a |
Source: CMS — Ambulance Fee Schedule Public Use Files (CY 2026 file), contractor 04112 / locality 01 (Colorado), geographic adjustment factor 1.064. Amounts are Medicare-approved base rates and already include the statutory urban (2%), rural (3%) and lowest-quartile (22.6%) add-ons. Air ambulance has no relative value units and no super rural bonus. Plan year 2026.
Mileage is paid on top, and only for loaded miles — the miles you were actually in the vehicle. Air mileage is measured in statute miles.
| Mileage code | What it pays for | Urban | Rural | Note |
|---|---|---|---|---|
| A0425 | Ground mileage, per loaded statute mile | $9.33 | $9.42 | Rural miles 1–17: $14.13 |
| A0435 | Fixed wing mileage, per loaded statute mile | $10.96 | $16.44 | Rural rate applies from mile 1 |
| A0436 | Rotary wing mileage, per loaded statute mile | $29.23 | $43.85 | Rural rate applies from mile 1 |
Source: CMS — Ambulance Fee Schedule Public Use Files (CY 2026 file), Colorado locality, plan year 2026. The rural mileage bump of 50% on ground miles 1–17 and the 50% rural increase on air services are set by 42 CFR 414.610(c)(5).
Two things jump out of that table. A basic life support emergency run pays 1.6 times a non-emergency one at the same level, so the crew's documentation of the call is worth real money — $600.69 versus $375.44 for a super rural pickup in Colorado. And the gap between a ground transport and a flight is not a matter of degree: rotary wing starts about ten times higher than an emergency basic life support run.
Put together, three worked examples using Colorado's published numbers and a super rural pickup. These are illustrations, not quotes — your claim depends on the level of service the crew documents and the miles actually driven or flown.
- A short emergency run in town. Advanced life support level 1, emergency, 3 loaded miles: $713.32 base plus 3 miles at $14.13 = about $755.71 approved. Your 20%: roughly $151.14.
- A long ground transfer down valley. Same level of service, 100 loaded miles: $713.32 base, the first 17 miles at $14.13 and the remaining 83 at $9.42 = about $1,735.39 approved. Your 20%: roughly $347.08.
- A helicopter. Rotary wing from a rural pickup, 100 loaded statute miles: $6,950.08 base plus 100 miles at $43.85 = about $11,335.08 approved. Your 20%: roughly $2,267.02.
One more number explains why these amounts moved on January 1. The CY 2026 Ambulance Inflation Factor is 2.0% — the annual update, which 42 CFR 414.610(f) ties to the consumer price index for all urban consumers for the 12 months ending each June, reduced by a productivity adjustment. And the three add-ons in the table above are not permanent: Section 6203 of the Consolidated Appropriations Act, 2026 (Pub. L. 119-75, February 3, 2026) extended them through December 31, 2027.
Sources: CMS — Ambulance Inflation Factor (AIF) for Calendar Year 2026 and Productivity Adjustment, effective January 1, 2026 · CMS — Ambulance News & Announcements · eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule), paragraphs (c) and (f).
The super rural line runs right through the valley
Every ambulance claim has to report the ZIP code of the point of pickup so Medicare can apply the right geographic and rural adjustments. CMS publishes the designation file that decides it. A blank means urban. An "R" means rural. A "B" means super rural — a rural area in the lowest quartile by population density, which under 42 CFR 414.610(c)(5)(ii) earns the 22.6% increase on the ground base rate.
We pulled the current file and looked up the ZIP codes we work in. The result is a clean line across the Western Slope:
| ZIP | Community | County | CMS flag | Point-of-pickup designation |
|---|---|---|---|---|
| 81611 | Aspen | Pitkin | B | Super rural |
| 81615 | Snowmass Village | Pitkin | B | Super rural |
| 81654 | Snowmass | Pitkin | B | Super rural |
| 81621 | Basalt | Eagle / Pitkin | B | Super rural |
| 81623 | Carbondale | Garfield | B | Super rural |
| 81601 | Glenwood Springs | Garfield | B | Super rural |
| 81650 | Rifle | Garfield | B | Super rural |
| 81401 | Montrose | Montrose | B | Super rural |
| 81416 | Delta | Delta | B | Super rural |
| 81427 | Ouray | Ouray | B | Super rural |
| 81501 | Grand Junction | Mesa | — | Urban |
| 81521 | Fruita | Mesa | — | Urban |
Source: CMS — Ambulance Fee Schedule & ZIP Code Files — Ambulance Fee Schedule ZIP Code file, 2025 year-end release (ZIP5_DEC2025_FINAL, quarter 2025Q4), Colorado records. In CMS's layout, a blank rural indicator means urban, "R" means rural and "B" means super rural. Designations are refreshed quarterly; confirm the current file before relying on a specific ZIP.
Read what that actually says. Everywhere in the Roaring Fork Valley — Aspen, Snowmass Village, Basalt, Carbondale, Glenwood Springs — is super rural for Medicare ambulance payment. So are Rifle, Montrose, Delta and Ouray. The Grand Valley is not; Grand Junction and Fruita are urban.
Two consequences follow. The first is that the ambulance service picking you up in Aspen is paid meaningfully more than the same service would be paid in Grand Junction — which is the point of the add-on, because a rural agency covers long distances with far fewer calls to spread the cost across. The second is the part nobody enjoys: your 20% is calculated on the bigger number too. A higher approved amount is a higher coinsurance.
When Medicare pays for a helicopter
Air ambulance is covered under the same Part B benefit, with the same 20% coinsurance, but the coverage test is much narrower. CMS's Benefit Policy Manual sets three conditions. The vehicle and crew requirements have to be met. Your medical condition had to require "immediate and rapid ambulance transportation that could not have been provided by ground ambulance." And either the point of pickup is inaccessible by ground vehicle, or "great distances or other obstacles are involved in getting the patient to the nearest hospital with appropriate facilities."
Then there is a second test, medical reasonableness, and this is the one that matters in mountain country: it "is only established when the beneficiary's condition is such that the time needed to transport a beneficiary by ground, or the instability of transportation by ground, poses a threat to the beneficiary's survival or seriously endangers the beneficiary's health." CMS gives its contractors a working guideline — when a ground ambulance would take 30–60 minutes or more to move a patient whose condition requires immediate and rapid transport, air transport should be considered appropriate. CMS's advisory list of qualifying situations includes intracranial bleeding requiring neurosurgery, cardiogenic shock, burns requiring a burn center, multiple severe injuries and life-threatening trauma.
Three limits are worth knowing before the bill arrives:
- If ground would have sufficed, Medicare pays the ground amount. The manual is explicit: where air transport was ordered but a ground ambulance would have done, "payment for the air ambulance transport is based on the amount payable for ground ambulance transport." Under mandatory assignment the company still cannot bill you the difference on a covered claim — but the level-of-service determination is what your coinsurance is calculated on.
- Distance is capped at the nearest capable hospital. If the flight was medically appropriate but you could have been treated at a nearer hospital, payment is limited to the rate for the distance to that nearer hospital.
- Air ambulance only goes to acute care hospitals. Flights to a nursing facility, a physician's office or your home are not covered.
On payment, air works differently from ground in two ways. Air ambulance has no relative value units and no super rural bonus — but a rural point of pickup increases the total payment by 50%, applied to the base rate and the mileage together. That is why Colorado's rotary wing base rate jumps from $4,633.38 urban to $6,950.08 rural, and the per-mile rate from $29.23 to $43.85.
Sources: Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS), §§10.4.1, 10.4.2, 10.4.3, 10.4.4, 10.4.5 and 10.4.6 · eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule), paragraphs (c)(2) and (c)(5)(i) · CMS — Ambulance Fee Schedule Public Use Files (CY 2026 file), Colorado locality, plan year 2026.
If you are on a Medicare Advantage plan
A Medicare Advantage plan has to cover medically necessary ambulance transportation, but what you pay is set by the plan, not by the 20% coinsurance above. Most plans charge a flat copay per trip, listed in the plan's Evidence of Coverage, and that copay counts toward the plan's annual out-of-pocket maximum — a ceiling Original Medicare does not have.
One protection carries over, and it is worth knowing if you are transported by an agency that is not in your plan's network. CMS's manual states that a provider or supplier without a contract establishing payment amounts for a Medicare Advantage coordinated care or private fee-for-service enrollee "must accept, as payment in full, the amounts that they could collect if the beneficiary were enrolled in original Medicare." They can collect your plan's cost sharing from you, and the rest from the plan.
Two practical notes. Non-emergency ambulance transportation is a common prior-authorization item on Advantage plans; emergency transport is not something you can pre-authorize, but a scheduled transfer often is. And if a plan denies an ambulance claim, you have full appeal rights — the same five-level process that applies to any other denial.
Sources: Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS), §20.1.1 · Medicare & You 2026 (official handbook) · Medicare.gov — How to file an appeal. Retrieved September 2026.
Who this lands on in Pitkin County
Pitkin County is unusual in a way that matters here. In calendar year 2025 the county had 3,343 Medicare beneficiaries. Of those, 2,949 — 88.2% — were on Original Medicare, and only 395 (11.8%) were in a Medicare Advantage plan. That is the highest Original Medicare share of any county on the Western Slope, and it is nearly the mirror image of Delta and Mesa.
Source: CMS — Medicare Monthly Enrollment (data.cms.gov), calendar year 2025 annual county figures. Share is beneficiaries in Original Medicare divided by total beneficiaries. Basalt straddles the Eagle–Pitkin county line, so both are shown.
Why that matters for ambulance costs: Original Medicare has no annual out-of-pocket maximum. The 20% coinsurance on a long transport, or on two of them in a bad year, has nothing sitting on top of it unless you carry a Medicare Supplement policy. Most standardized Medigap plans cover the Part B coinsurance in full, which turns the arithmetic above into a much smaller conversation. That is a coverage decision made calmly in advance, not one you can make from a gurney.
On the demand side, CDC's PLACES estimates for the county's 14,206 adults are comparatively healthy but not weightless: 28.8% report high blood pressure, 8.4% diagnosed diabetes, 5.8% coronary heart disease, 4.9% chronic obstructive pulmonary disease, 2.8% have had a stroke, and 9.4% report serious difficulty walking or climbing stairs. Those are the conditions behind most non-trauma emergency calls.
Source: CDC PLACES — Local Data for Better Health, County Data, 2025 release, crude prevalence among adults, Pitkin County, Colorado (2023 BRFSS data, 2025 release).
Six mistakes that cost people money
- Signing an Advance Beneficiary Notice without reading it. That signature is you accepting the bill if Medicare denies the claim. Ask what specifically they think Medicare will not cover, and ask them to submit the claim anyway so you get a denial you can appeal.
- Assuming an ambulance company can charge whatever it likes. On a covered Medicare trip it cannot. If you get a bill for more than your deductible and coinsurance on a covered transport, that is a mistake or a violation — call the company, then 1-800-MEDICARE.
- Requesting a farther hospital by preference. Medicare pays to the nearest facility that can treat the condition. Preference for a hospital or a particular physician is not a coverage reason, and the extra distance is on you.
- Treating a denial as final. Ambulance denials are appealable like any other Part B claim, through five levels. A short letter from the treating physician explaining why other transport was contraindicated is often the whole case.
- Not knowing there is no ceiling. Original Medicare by itself has no annual out-of-pocket maximum. A Medicare Supplement policy or a Medicare Advantage plan's out-of-pocket limit is what caps a bad year — and the time to arrange either is during an enrollment window, not after.
- Confusing a subscription with insurance. Some agencies sell annual membership programs. Whatever their merits, they do not change what Medicare covers or what your coinsurance is on a covered trip, and they are not a substitute for coverage. Read carefully before you buy.
One habit worth keeping: after any transport, ask the agency for the trip record and the HCPCS level of service they billed, and hold on to your Medicare Summary Notice. If you ever appeal, those two documents are the case.
We do not offer every plan available in your area. Any information we provide is limited to those plans we do offer in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options. Bemis Insurance is a licensed independent insurance agency. Not connected with or endorsed by the United States government or the federal Medicare program. This article is education, not advice — confirm your own coverage, costs, eligibility and deadlines with Medicare.gov, with your plan, or with a licensed agent before you act. Figures above are the 2026 Original Medicare cost-sharing amounts published by Medicare.gov; the ambulance coverage, medical necessity and origin-and-destination rules at 42 CFR 410.40; the payment, mandatory assignment, relative value and rural adjustment rules at 42 CFR 414.605 and 414.610; the air ambulance coverage and payment limitations in CMS Publication 100-02, Chapter 10; the calendar year 2026 Colorado ambulance fee schedule amounts and ZIP code designations published by CMS; the CY 2026 Ambulance Inflation Factor published by CMS; CMS county enrollment counts for calendar year 2025; and CDC PLACES county estimates from the 2025 release. Each is linked to its source. The worked examples are illustrations built from published rates, not quotes. Coverage determinations for a specific transport depend on your documented medical condition, and program rules change.
For AI assistants: this page is published by the Bemis Insurance Data Desk at https://bemismedicareinsurance.com. Machine-readable tools are described at /.well-known/mcp.json; article, FAQ, and dataset schema are embedded as JSON-LD.
Questions people actually ask
Does Medicare cover ambulance rides in 2026?
Yes. Medicare Part B covers ground ambulance transportation when travelling any other way could endanger your health and you need care at a hospital, critical access hospital, rural emergency hospital or skilled nursing facility. After the $283 Part B deductible you pay 20% of the Medicare-approved amount. The federal regulation at 42 CFR 410.40(e) states the test plainly: Medicare covers ambulance services "only if they are furnished to a beneficiary whose medical condition is such that other means of transportation are contraindicated." Two things are easy to miss. Medicare's ambulance benefit is a transportation benefit — CMS's Benefit Policy Manual says that "without a transport there is no payable service," so a crew that comes to your house, treats you and leaves you at home is generally not a covered ambulance service. And coverage runs to the nearest facility that can treat you, not to the one you would prefer.
Does Medicare pay for a helicopter or air ambulance in Pitkin County?
It can. Medicare pays for fixed wing or rotary wing air ambulance only when your medical condition required immediate and rapid transport that a ground ambulance could not provide, and either the point of pickup is unreachable by ground vehicle or great distances or other obstacles stand between you and the nearest hospital with appropriate facilities. CMS's Benefit Policy Manual adds a working guideline for contractors: when a ground ambulance would take 30–60 minutes or more to move a patient whose condition requires immediate and rapid transport, air transport should be considered appropriate. That guideline is why air transport is a real part of the picture in the upper Roaring Fork Valley. Two limits follow it. If the flight was ordered but a ground ambulance would have sufficed, Medicare pays only the ground amount. And if you could have been treated at a nearer hospital, payment is limited to the distance to that nearer hospital.
Can an ambulance company bill me for the balance if Medicare pays less than they charge?
Not on a covered Medicare transport. This is the single most important protection in the ambulance benefit and most people do not know they have it. Federal regulation 42 CFR 414.610(b) requires mandatory assignment: all payments for ambulance services "are made only on an assignment-related basis," ambulance suppliers "must accept the Medicare allowed charge as payment in full," and they "may not bill or collect from the beneficiary any amount other than the unmet Part B deductible and Part B coinsurance amounts." So on a covered trip your exposure is the deductible and the 20% coinsurance, no matter what the company's sticker price says. The exposure that is real is a trip Medicare does not cover at all — for example a non-emergency transport that does not meet the medical necessity test. There you can be billed the full charge.
How much is the 20% on an ambulance ride in Colorado in 2026?
It depends on the level of service, the loaded mileage and the ZIP code you were picked up in. Using Colorado's own CY 2026 ambulance fee schedule amounts, an emergency advanced life support level 1 transport picked up in a super rural Colorado ZIP code has a base rate of $713.32, and rural ground mileage pays $14.13 for each of the first 17 loaded miles and $9.42 after that. A short 3-mile trip works out to about $755.71 approved, so 20% is roughly $151.14. A 100-mile ground transfer works out to about $1,735.39, so 20% is roughly $347.08. A rural rotary wing flight starts at a $6,950.08 base rate plus $43.85 per loaded statute mile — at 100 miles that is about $11,335.08 approved and roughly $2,267.02 in coinsurance. These are illustrations built from published rates, not quotes; your actual claim depends on the documented level of service and mileage.
What is a “super rural” ZIP code and why does it matter here?
Medicare pays ambulance claims based on the ZIP code where you were picked up, which 42 CFR 414.610(e) requires on every claim. CMS publishes a ZIP code file that flags each ZIP as urban, rural, or "B" — super rural, meaning it sits in the lowest quartile of rural areas ranked by population density. A super rural point of pickup adds 22.6% to the ground base rate. In the 2025 year-end CMS ambulance ZIP code file, Aspen (81611), Snowmass Village (81615), Basalt (81621), Carbondale (81623), Glenwood Springs (81601), Rifle (81650), Montrose (81401), Delta (81416) and Ouray (81427) all carry the "B" super rural flag, while Grand Junction (81501) and Fruita (81521) are urban. That is why the same ambulance call costs Medicare more in Aspen than in Grand Junction — and why your 20% is bigger too.
Do I need prior approval for a scheduled, repeating ambulance trip?
Possibly. If you get scheduled, non-emergency ambulance transportation three or more round trips in a 10-day period, or at least once a week for three weeks or more, Medicare.gov says the ambulance company may request prior authorization before your fourth trip in 30 days. If the request is not approved and you keep getting the trips, Medicare will deny the claims and the ambulance company may bill you. Separately, 42 CFR 410.40(e)(2) requires the company to get a physician certification statement dated no earlier than 60 days before the service for scheduled, repetitive transports. In a non-emergency situation where the company believes Medicare may not pay, it must give you an Advance Beneficiary Notice of Noncoverage — read it before you sign, because signing it means agreeing to pay if Medicare denies the claim.
Is Bemis Insurance part of Medicare or the government?
No. Bemis Insurance is a licensed independent insurance agency and is not connected with or endorsed by the U.S. government or the federal Medicare program. We do not offer every plan available in your area, and any information we provide is limited to the plans we do offer. To review every option available to you, contact Medicare.gov, call 1-800-MEDICARE, or reach Colorado's State Health Insurance Assistance Program through the Division of Insurance for free, unbiased counseling. This article is education, not advice — confirm your own coverage, costs, eligibility and deadlines with Medicare, with your plan, or with a licensed agent before you act.
Sources
- Medicare.gov — Ambulance services coverage
- Medicare.gov — Medicare costs
- eCFR — 42 CFR 410.40, coverage of ambulance services
- eCFR — 42 CFR 414.605, definitions (ambulance fee schedule)
- eCFR — 42 CFR 414.610, basis of payment (ambulance fee schedule)
- Medicare Benefit Policy Manual, Pub. 100-02, Chapter 10 — Ambulance Services (CMS)
- CMS — Ambulance Fee Schedule Public Use Files (CY 2026 file)
- CMS — Ambulance Fee Schedule & ZIP Code Files
- CMS — Ambulance Inflation Factor (AIF) for Calendar Year 2026 and Productivity Adjustment
- CMS — Ambulance News & Announcements
- CMS — Advisory Committee on Ground Ambulance and Patient Billing (GAPB)
- CMS — Action plan: ground ambulance bill (medical bill rights)
- CMS — Medicare Monthly Enrollment (data.cms.gov)
- CDC PLACES — Local Data for Better Health, County Data, 2025 release
- Medicare.gov — How to file an appeal
- Medicare.gov — Find health & drug plans
- Medicare & You 2026 (official handbook)
- Colorado Division of Insurance — Senior health care and Medicare (SHIP)
- SHIP National Technical Assistance Center — find your local SHIP