Yes, Medicare is accepted in all 50 states, but the answer depends on which kind of Medicare you have. Original Medicare (Parts A and B) works in every state, Washington D.C., and U.S. territories with any provider that participates in the program. Medicare Advantage plans are tied to a local service area, so routine care outside that area is generally not covered.
Original Medicare Works in Every State
Original Medicare has no networks and no state boundaries. If a provider accepts Medicare, they accept your Medicare, whether you’re at home in Ohio or visiting family in Oregon. About 99 percent of physicians participate in the Medicare program, so finding one who takes it is rarely a problem. The provider bills Medicare directly, and you pay your share (the deductible and coinsurance).1Medicare. Does Your Provider Accept Medicare as Full Payment
Coverage reaches beyond the states. Original Medicare also pays for covered services in Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands under the same rules that apply on the mainland.2Medicare. What Original Medicare Covers
Not Every Accepting Provider Charges the Same
Providers who take Medicare fall into three groups, and the difference shows up in your bill:
- Participating providers accept “assignment,” meaning they agree to charge only the Medicare-approved amount. You owe your deductible and 20 percent coinsurance, and nothing more. Most providers fall here.1Medicare. Does Your Provider Accept Medicare as Full Payment
- Non-participating providers still see Medicare patients but can bill up to 15 percent above the Medicare-approved amount. That extra is the “limiting charge,” and it’s capped by federal law. Fewer than 3 percent of Medicare-accepting physicians are in this group.
- Opted-out providers have left the program entirely. Medicare pays nothing for their services except in emergencies, and you must sign a private contract agreeing to cover the full cost. About 1 percent of physicians have opted out.3Office of the Law Revision Counsel. 42 US Code 1395a – Free Choice by Patient Guaranteed
In practical terms, you’ll find providers who accept assignment in nearly every city and town. Still, confirm before scheduling, especially with specialists in high-demand areas where opt-out rates run higher.
Medicare Advantage Plans Are Tied to a Service Area
Medicare Advantage (Part C) plans are sold by private insurers under contract with Medicare. Each plan has a defined service area, usually built around one or more counties, and its provider network is concentrated there. You must live in the service area to enroll.4Medicare. Understanding Medicare Advantage Plans For routine, non-emergency care, you generally need to use in-network providers inside that area. See an out-of-network doctor for a planned visit while traveling, and you could be responsible for the entire bill.5eCFR. 42 CFR Part 422 – Medicare Advantage Program
Emergencies Are Covered Anywhere in the U.S.
Federal law overrides the network rules for emergencies. Medicare Advantage plans must cover emergency and urgently needed services anywhere in the United States, regardless of whether the hospital or doctor is in the plan’s network and regardless of prior authorization. The plan pays as if you used an in-network provider.6Office of the Law Revision Counsel. 42 US Code 1395w-22 – Benefits and Beneficiary Protections The standard is the “prudent layperson” test: if a reasonable person with average medical knowledge would believe the symptoms require immediate attention, it counts.
Traveler Benefits and the Six-Month Rule
Some Medicare Advantage plans offer a visitor or traveler benefit that lets you access non-emergency care in designated areas outside your home service area. Programs vary widely on which regions are covered, which services qualify, and how much you pay out of pocket. If you travel often, ask your plan directly and read the fine print.
If you leave your plan’s service area for more than six consecutive months, the plan is required to disenroll you. Plans with a visitor/traveler program can extend that to up to 12 months, but once the window closes, disenrollment is automatic. You’d then revert to Original Medicare and could either enroll in a new plan available at your current location or stay with Original Medicare.7Centers for Medicare & Medicaid Services. Medicare Advantage and Part D Enrollment and Disenrollment Guidance
Medigap Follows You Across State Lines
Medigap (Medicare Supplement Insurance) pairs with Original Medicare and helps cover what Original Medicare leaves behind, like the Part A inpatient deductible ($1,736 in 2026) and the 20 percent Part B coinsurance.8Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles Because Medigap rides on top of Original Medicare, it works anywhere Original Medicare works. Any provider in any state who accepts Original Medicare will trigger your Medigap benefits too. There are no Medigap networks or service areas to worry about.
Part D Prescriptions While Traveling
Most standalone Part D drug plans have national pharmacy networks, so you can fill a prescription in another state. The catch is cost, not access. A “preferred” in-network pharmacy usually means lower copayments; a non-preferred or out-of-network pharmacy costs more. Before a trip, use your plan’s pharmacy locator or call to find preferred pharmacies near your destination.
If your drug coverage is bundled into a Medicare Advantage plan (an MA-PD plan), pharmacy access follows the same service-area logic as the rest of the plan. Some MA-PD plans contract with national pharmacy chains; others limit preferred pharmacies to the local service area. Check before you go.
Moving to a New State
If you have Original Medicare and a Medigap policy, moving is straightforward from a coverage standpoint. Original Medicare works the same in your new state, and your Medigap policy keeps covering your out-of-pocket costs wherever you receive care. You still need to update your address with Social Security, which manages Medicare enrollment records, even if you aren’t collecting Social Security benefits.9Medicare. How Do I Change My Address with Medicare
Moving is more involved with a Medicare Advantage or Part D plan. If your new address is outside the plan’s service area, you can’t stay enrolled. You’ll qualify for a Special Enrollment Period that starts the month before you move (if you notify the plan in advance) and runs for two full months after you move. Use that window to join a new Medicare Advantage or Part D plan available in your new location, or switch to Original Medicare.10Medicare. Special Enrollment Periods
Medigap Guaranteed Issue Rights After a Move
If you’re leaving a Medicare Advantage plan because you moved out of its service area, federal law gives you guaranteed issue rights for Medigap. Insurers in your new state must sell you a Medigap policy without medical underwriting or pre-existing condition exclusions. That matters, because outside of limited situations like this one, Medigap insurers in most states can deny coverage or charge more based on your health history. Don’t let the two-month enrollment window close without looking at Medigap options if you’re returning to Original Medicare.
What About Outside the United States
“All 50 states” doesn’t extend abroad. Original Medicare generally does not pay for healthcare outside the U.S., with only three narrow exceptions: an emergency in the U.S. where the closest hospital is across the Canadian or Mexican border; a medical emergency while traveling through Canada on the most direct route between Alaska and the lower 48; and medically necessary services aboard a cruise ship while docked at or within six hours of a U.S. port. Many Medigap plans include a limited foreign travel emergency benefit, but that isn’t a substitute for dedicated travel insurance on a long trip abroad.11Medicare. Medicare Coverage Outside the United States
Finding Providers Away From Home
With Original Medicare, use Medicare’s Care Compare tool at medicare.gov to search for participating doctors, hospitals, nursing homes, and other providers by location and specialty anywhere in the country.12Medicare. Find Healthcare Providers: Compare Care Near You It’s the fastest way to confirm a provider takes Medicare before you schedule an appointment on the road.
Medicare Advantage members should start with their plan’s own provider directory or customer service line. Because coverage for non-emergency care depends on your plan’s network, the Medicare.gov tool won’t tell you whether a particular doctor is in-network for your specific plan. Get that answer before the visit, not after the bill arrives.