Grand Junction · Medicare and out-of-state specialty care
Can I Use Medicare in Another State for Specialty Care?
Yes, if you have Original Medicare: any provider that takes Medicare, anywhere in the country, no referral, no plan to ask. If your Medicare comes through a Medicare Advantage plan, the answer is written in the plan type and the network, and the time to read it is before you book the trip, not after the bill arrives.
The bottom line
- Original Medicare has no state line. Medicare.gov: "You can see any doctor or hospital that takes Medicare, anywhere in the U.S." A Medigap policy follows the same claim, "no matter where you live."
- A Medicare Advantage HMO covers out-of-network care in three cases: "Emergency care, Out-of-area urgent care, Temporary out-of-area dialysis." A planned consult in Salt Lake City or Phoenix is not one of them.
- A PPO will pay out of network, at a higher price, "if they're participating in Medicare or accept assignment," and Medicare.gov says to contact the plan first.
- Two extra bills to watch anywhere: the 15% limiting charge from a non-participating provider, and anything at all from a provider who has opted out of Medicare.
- Before October 15 – December 7: if a distant center is part of your care, search each 2027 plan's directory for it by name before you enroll. The 90 days prior-approval transition buys time, not a network.
Here is the version of this question I hear in Grand Junction: "My oncologist wants me seen at Huntsman in Salt Lake," or "my cardiologist is sending me to Denver," or, from people who did their own research, "I want a second opinion at Mayo in Arizona. Will my Medicare go with me?" Mesa County has 2 acute care hospitals on the CMS list, and they handle a great deal. For the rest, the Western Slope has always sent people over a pass or across a state line. Medicare was built for that. Some of the plans that deliver it were not. This post sorts out which is which, in Medicare.gov's own words, and gives you the five checks to run before you make the drive.
What each kind of coverage does at the state line
Medicare.gov's coverage options page draws the distinction in two sentences. Original Medicare: "You can see any doctor or hospital that takes Medicare, anywhere in the U.S." Medicare Advantage: "In many cases, you can only use doctors who are in the plan's network." Everything below is a footnote to those two lines. The table assumes the appointment is planned, in another state, and not an emergency.
| Your coverage | The rule, per Medicare.gov | What you pay | Planned out-of-state care |
|---|---|---|---|
| Original Medicare only | "You can see any doctor or hospital that takes Medicare, anywhere in the U.S." No network, no referral, no prior approval from a plan. | 20% of the Medicare-approved amount after the Part B deductible, with no yearly cap. Up to 15% more if the provider is non-participating. | Works |
| Original Medicare + Medigap | Same freedom. "Policies with the same letter offer the same basic benefits no matter where you live." The policy follows Medicare's claim, not a network. | What the letter leaves: Plan G pays the 20% and the Part B excess charge; Plan N leaves office and ER copays and does not pay excess charges. | Works |
| Medicare Advantage HMO | Care must come from the plan's network "except: Emergency care, Out-of-area urgent care, Temporary out-of-area dialysis." A planned visit in another state is none of those. | "If you get health care outside the plan's network, you may have to pay the full cost." Some out-of-state centers are in a national network; most are not. | Usually not |
| Medicare Advantage HMO-POS | "May allow you to get some services out-of-network for a higher copayment or coinsurance." Which services, and up to what dollar limit, is in the Evidence of Coverage. | Higher cost sharing, often with an annual out-of-network allowance that a long course of treatment can exhaust. | Sometimes |
| Medicare Advantage PPO | "You can also use out-of-network providers for covered services, if they're participating in Medicare or accept assignment, but you'll usually pay more." No referral. Medicare.gov says to "contact your PPO Plan" first about medical necessity and coverage. | Out-of-network coinsurance, typically higher than in-network, counting toward a separate and higher out-of-pocket limit. The provider must also agree to bill the plan. | Yes, at a price |
| Part D drug coverage | Pharmacy networks are national in most plans. A prescription written by an out-of-state specialist is filled like any other if the drug is on your formulary. | Preferred vs. standard pharmacy pricing still applies; a new specialty drug may need prior authorization from your Part D plan regardless of who prescribed it. | Works |
Sources: Medicare.gov, Your coverage options; HMOs; PPOs; Medigap basics; Compare Medigap plan benefits. Cost-sharing amounts are set by each plan; none are quoted here.
The row people misread is the HMO. Every Medicare Advantage plan covers an emergency in any state, and people extend that in their minds to "my plan works everywhere." The HMO page lists exactly three exceptions to the network, and a scheduled appointment with a specialist eight hours away is not among them. Some HMOs do contract with a national network of centers, and the plan's directory will show the facility if so. Otherwise the sentence to take seriously is this one: "If you get health care outside the plan's network, you may have to pay the full cost."
The PPO row is the one that surprises people in the other direction. Medicare.gov says you "can also use out-of-network providers for covered services, if they're participating in Medicare or accept assignment," which covers most large centers. What it does not say is that it will be cheap. Out-of-network coinsurance is usually higher, it counts toward a separate and higher out-of-pocket limit, and the provider has to be willing to bill a plan it has no contract with. Medicare.gov's instruction on the PPO page is the practical one: "Before you get services from an out-of-network provider, contact your PPO Plan to ensure the services are medically necessary and covered by your plan."
A real example: Mayo Clinic and Medicare Advantage
Large specialty centers publish what they accept, and the answers move. Mayo Clinic is the one Grand Junction patients ask about most, so here is what is on the record. In an October 22, 2025 report by KTTC in Rochester, Mayo Clinic said it "participates in Traditional Medicare (Parts A, B, and D), and Medicare supplement plans." In the same report, UnitedHealthcare said its "Medicare Advantage individual and Dual Special Needs Plans (DSNP)" would be out of network at Mayo's Minnesota, Wisconsin and Iowa locations as of January 1, 2026, and Humana said "Mayo Clinic will be out-of-network for Humana Medicare Advantage members beginning Jan. 1, 2026." Employer-sponsored plans and Medicare Advantage group retiree plans kept their access.
Read that as a pattern, not as a verdict on any carrier. Contracts between a destination center and an Advantage plan are negotiated year by year and location by location. The Midwest campuses are not the Arizona campus, 2026 is not 2027, and an individual plan is not a group retiree plan. Original Medicare and a Medigap policy sit outside all of that, which is the whole reason affluent retirees who expect to travel for care tend to land there. If you are on an Advantage plan and a specific center is part of your plans, the center's accepted-insurance page and your plan's directory are the two documents that settle it, and they need to be read together and recently.
Being referred out of state, or planning to be?
Bring your plan card, the name of the center and the physician, and the referral if you have one, to our Grand Junction office. We will read your plan's network and out-of-network rules against that specific center, confirm the prior-approval steps, and, if it is Open Enrollment, check the 2027 plans' directories for it by name before you choose. Free, local, no pressure. We do not offer every plan available in your area, and we will say so when Medicare.gov or 1-800-MEDICARE is the better next call.
Book a coverage review →The five checks before you book
The order matters. Check one is free and takes a phone call; check four is the one that produces the surprise, and it only matters once the first three pass.
| Check | How | Why it matters |
|---|---|---|
| 1. Does the center take Medicare at all? | Look the facility and the physician up on Medicare.gov's Care Compare, then ask the billing office one question: "Do you accept Medicare assignment?" | Most do. A non-participating provider can bill up to 15% over the approved amount. A provider who has opted out of Medicare is a different animal: "Medicare won't pay for items or services you get from provider that opts out, except in emergencies," and neither will a Medigap policy. |
| 2. If you are on Medicare Advantage, is the center in your plan's network? | Search the plan's directory for the facility and for the specific physicians, then call the plan and ask for the answer in writing. Many large centers publish an accepted-insurance page; read it for your plan's exact name. | Hospital and physician contracts are separate. A center can be in-network while the surgeon who works there is not, or the reverse. |
| 3. What does your plan require before the first visit? | HMO: a referral from your primary care doctor, and usually prior approval for the procedure. PPO: no referral, but Medicare.gov's advice stands: contact the plan first about medical necessity and coverage. | A denied prior approval after the trip is the expensive version of this story. Get the approval number before you book the flight or the drive. |
| 4. What will the visit actually cost you? | Ask the plan for the out-of-network coinsurance and the out-of-network out-of-pocket limit, not just the in-network figures on the summary page. | A second, higher limit is normal on PPOs. On an HMO-POS, ask for the annual out-of-network dollar cap. |
| 5. Will the drugs come home with you? | Have the specialist send prescriptions to your Grand Junction pharmacy, and check the formulary tier and any prior-authorization flag on your Part D plan before you leave the appointment. | The out-of-state center's own pharmacy may be out of your Part D network, and a specialty drug started there can stall at home if the plan has not approved it. |
Sources: Medicare.gov, Does your provider accept Medicare as full payment?; Care Compare; HMOs; PPOs.
Two things in check one deserve a closer look, because they apply to Original Medicare too. The first is assignment. A provider who accepts assignment agrees to Medicare's approved amount as payment in full. One who is enrolled but non-participating can, per Medicare.gov, charge "not more than 15% above the Medicare-approved amount," the limiting charge. That is the Part B excess charge on the Medigap chart, which Plans F and G pay and Plan N does not, one of the practical differences we covered in our Plan G versus Plan N post. The second is opting out. A small number of physicians have left Medicare altogether, and "Medicare won't pay for items or services you get from provider that opts out, except in emergencies." A Medigap policy pays nothing on a claim Medicare paid nothing on. Concierge and boutique practices in destination cities are where this shows up; our concierge medicine post explains the mechanics.
What this means during Open Enrollment
Between October 15 – December 7 you can move between Original Medicare and Medicare Advantage, or between Advantage plans, for a January 1 start. If a distant center is already part of your care, that decision has one more test than usual, and it is a test you can run in advance: search each candidate plan's 2027 directory for the facility and for the individual physicians. Medicare.gov's joining-a-plan page puts the general version plainly for anyone who spends part of the year elsewhere: "If you live in another state for part of the year, check if the plan will cover you there."
Switching mid-treatment has a federal cushion, and it is smaller than it sounds. Medicare.gov's HMO and PPO pages both say: "If you're currently getting treatment and you switch to a new plan, you'll have at least 90 days before the new plan can ask you to get a new prior approval for your ongoing treatment." That protects the approval. It does not put the out-of-state center in the new network, and after the transition the new plan's rules apply in full. We walked through the continuity rule in more detail in does prior authorization carry over to a new Medicare plan.
The people who most need to think about this are often the ones who feel least pressed to. Mesa County's CDC PLACES figures put coronary heart disease at 5.2% of adults and diabetes at 8.1% (2023), the conditions behind most of the referrals that leave the valley. Someone healthy at 66, choosing a plan on premium, is choosing the network they will have at 74. A plan that keeps Intermountain Health St. Mary's Regional Hospital and Community Hospital in network covers the routine years well. Whether it reaches Salt Lake City, Denver or Phoenix is a separate question, and it is worth answering while the answer is still hypothetical.
What I would do
If you are on Original Medicare with a Medigap policy, you are done: confirm the center takes Medicare, ask about assignment, and go. If you are on a PPO, call the plan with the center's name before you schedule, get the out-of-network coinsurance and out-of-pocket limit in writing, and ask the center's billing office whether it will bill your plan. If you are on an HMO, start with the directory. If the center is not in it, your options are the plan's exceptions process, a different plan at the next enrollment window, or paying the full cost, and the honest answer is that the first of those rarely succeeds for a planned consult. None of this makes Medicare Advantage the wrong choice for someone whose care stays in the Grand Valley. It makes it a choice with a map attached.
How we know all this: the Medicare On Main Data Desk frames every article with public data — here, Medicare.gov's coverage options page for the Original Medicare and Medicare Advantage rules; Medicare.gov's HMO and PPO pages for the network exceptions, the out-of-network wording, the referral rules and the 90 days prior-approval transition; Medicare.gov's provider-payment page for assignment, the 15% limiting charge and opt-out providers; Medicare.gov's Medigap basics and benefit chart for standardization, the Part B excess charge row and the foreign travel emergency benefit; Medicare.gov's joining-a-plan page; KTTC's October 22, 2025 report for the Mayo Clinic, UnitedHealthcare and Humana statements, quoted as reported and not verified against the plans' 2027 contracts; CMS Hospital General Information for Mesa County's hospitals; and CDC PLACES county data (2023). Plan cost sharing, out-of-pocket limits and network contents are set by each plan and change yearly — none are quoted. No carrier is endorsed or criticized; network status is reported as a fact of a given year. This is education, not advice; confirm your plan's network, costs and rules with the plan, a licensed agent, or Medicare.gov. We take no payment from any carrier to feature a plan.
Frequently asked questions
Can I use Medicare in another state?
Yes, if it is Original Medicare. Medicare.gov: "You can see any doctor or hospital that takes Medicare, anywhere in the U.S." Parts A and B are federal and have no service area, so a planned appointment in Salt Lake City, Denver, Phoenix or Rochester is billed the same way as one in Grand Junction. Confirm the provider accepts Medicare, and ideally accepts assignment. If your Medicare comes through a Medicare Advantage plan, the answer depends on the plan type and its network, which the table above walks through.
Does Medicare Advantage cover out-of-state care?
Emergency care, out-of-area urgent care and temporary out-of-area dialysis are covered by every Medicare Advantage plan wherever you are. Planned care in another state is a network question. Medicare.gov's HMO page says you "generally must get your care and services from doctors, other health care providers, and hospitals in the plan's network" and that outside it "you may have to pay the full cost." A PPO lets you go out of network for covered services "if they're participating in Medicare or accept assignment, but you'll usually pay more." Some plans include national networks that reach specific out-of-state centers; check your own plan's directory for the facility by name.
Can I go to Mayo Clinic with Medicare?
With Original Medicare, yes. In an October 2025 statement reported by KTTC in Rochester, Mayo Clinic said it "participates in Traditional Medicare (Parts A, B, and D), and Medicare supplement plans." Medicare Advantage is plan-specific: the same report quoted UnitedHealthcare that its "Medicare Advantage individual and Dual Special Needs Plans" would be out of network at Mayo's Minnesota, Wisconsin and Iowa locations from January 1, 2026, and Humana that "Mayo Clinic will be out-of-network for Humana Medicare Advantage members beginning Jan. 1, 2026," while employer-sponsored and group retiree Advantage plans kept access. Mayo's Arizona campus is the one most Western Slope patients would use; check its accepted-insurance page and your plan's directory for the current answer, because contracts change by year and by location.
Does Medigap work in any state?
Yes. Medicare.gov: "All Medigap policies are standardized. This means, policies with the same letter offer the same basic benefits no matter where you live or which insurance company you buy the policy from." A Medigap policy pays after Original Medicare pays, on the same claim, so it has no network and no state line. The exceptions are Medicare SELECT policies, which use a network for non-emergency hospital care, and, obviously, providers who do not take Medicare. Plans C, D, F, G, M and N also carry a foreign travel emergency benefit at 80% up to plan limits, which is about leaving the country, not the state.
What is a Part B excess charge, and does it apply out of state?
It is the extra a non-participating provider may bill above Medicare's approved amount. Medicare.gov: "In many cases, the charge can't be more than 15% above the Medicare-approved amount for non-participating healthcare providers. This amount is called 'the limiting charge.'" It applies anywhere in the U.S., and it is more likely to come up at a distant specialty center than at your regular doctor, because you did not choose that provider for their billing status. On the Medicare.gov Medigap chart, "Part B excess charge" is a benefit that Plans F and G pay and Plan N does not. Ask about assignment before the visit and the question answers itself.
If I switch plans during Open Enrollment, can I keep a treatment already underway in another state?
For a while, and then it depends on the new plan's network. Medicare.gov's HMO and PPO pages both say: "If you're currently getting treatment and you switch to a new plan, you'll have at least 90 days before the new plan can ask you to get a new prior approval for your ongoing treatment." That is a transition, not a guarantee that the out-of-state center is in the new network. Before you enroll in a 2027 plan during October 15 – December 7, search its directory for the center and the physicians by name. If they are not there, the plan's out-of-network rules become your rules on January 1.
Sources
- Medicare.gov — Your coverage options (Original Medicare vs. Medicare Advantage) — "any doctor or hospital that takes Medicare, anywhere in the U.S." vs. "only use doctors who are in the plan's network."
- Medicare.gov — Health Maintenance Organizations (HMOs) — the three out-of-network exceptions, "you may have to pay the full cost," referrals, HMO-POS, the 90 days transition.
- Medicare.gov — Preferred Provider Organizations (PPOs) — out-of-network "if they're participating in Medicare or accept assignment," "contact your PPO Plan" first.
- Medicare.gov — Does your provider accept Medicare as full payment? — assignment, the 15% limiting charge, opt-out providers.
- Medicare.gov — Medigap basics — "no matter where you live or which insurance company you buy the policy from."
- Medicare.gov — Compare Medigap plan benefits — the Part B excess charge and foreign travel emergency rows.
- Medicare.gov — Joining a plan — "If you live in another state for part of the year, check if the plan will cover you there."
- Medicare.gov — Find care providers (Care Compare) — look up whether a provider takes Medicare.
- KTTC — Mayo Clinic out of network for certain Medicare Advantage plans from UnitedHealthcare and Humana (Oct 22, 2025) — the Mayo Clinic, UnitedHealthcare and Humana statements.
- Centers for Medicare & Medicaid Services — Hospital General Information — Mesa County's hospital list.
- CDC PLACES: Local Data for Better Health, County 2023 — Mesa County heart disease and diabetes prevalence.
