Yes, Medicare is accepted in Puerto Rico, and eligible residents get the same Part A, Part B, Medicare Advantage, Part D, and Medigap options available in the 50 states.1Medicare.gov. Medicare Coverage Outside the United States The federal government treats the island as part of the United States for Medicare purposes, so doctors, hospitals, and clinics that accept Medicare assignment bill the program the same way providers do anywhere else. One catch matters more than any other: Part B is not automatic in Puerto Rico, and missing your signup window creates a premium penalty that lasts for as long as you have coverage.
Who Qualifies
The eligibility rules are identical to the mainland. You qualify at 65, or earlier with a qualifying disability or end-stage renal disease.2Centers for Medicare & Medicaid Services. Original Medicare (Part A and B) Eligibility and Enrollment Most people pay no premium for Part A because they or a spouse paid Medicare taxes for at least 10 years.
The Part B Enrollment Difference
On the mainland, people already collecting Social Security or Railroad Retirement Board benefits when they turn 65 are automatically enrolled in both Part A and Part B. In Puerto Rico, the same person is enrolled only in premium-free Part A. You have to sign up for Part B yourself.2Centers for Medicare & Medicaid Services. Original Medicare (Part A and B) Eligibility and Enrollment
That single administrative wrinkle causes real damage, because many residents assume enrollment happened automatically and never take the step.
When to Sign Up
Your first chance is the Initial Enrollment Period, a seven-month window that begins three months before the month you turn 65 and ends three months after.3Medicare.gov. When Does Medicare Coverage Start Miss it, and the next general opportunity is the General Enrollment Period, January 1 through March 31 each year, with coverage starting the first day of the month after you enroll.
If you or your spouse have group health coverage through a current employer, you can delay Part B without penalty. Once that employment or the coverage ends, an eight-month Special Enrollment Period opens for you to sign up.4Social Security Administration. Medicare
The Late Enrollment Penalty
Miss your Initial Enrollment Period without qualifying employer coverage, and your Part B premium goes up by 10 percent for every full 12-month period you could have been enrolled but weren’t.5Medicare.gov. Avoid Late Enrollment Penalties The 2026 standard Part B premium is $202.90 per month.6Centers for Medicare & Medicaid Services. 2026 Medicare Parts A and B Premiums and Deductibles Two full years late means roughly 20 percent more every month, permanently. The penalty never goes away.
Without Part B, you have no coverage for doctor visits, outpatient care, or preventive services, and you cannot enroll in a Medicare Advantage plan or buy a Medigap policy.
What Original Medicare Covers on the Island
Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health services. Part B covers physician services, outpatient procedures, lab tests, preventive screenings, durable medical equipment, and mental health services. You can see any doctor or use any facility in Puerto Rico that accepts Medicare assignment, with no referral requirement and no network restrictions. The same holds if you travel to any state or U.S. territory.
Medicare Advantage Is How Most People on the Island Get Coverage
Medicare Advantage (Part C) dominates the Puerto Rico market in a way that has no parallel on the mainland. As of 2022, roughly 84 percent of Medicare beneficiaries on the island were enrolled in a Medicare Advantage plan, compared with about 48 percent nationally.7The American Journal of Managed Care. Medicare Advantage in the US Mainland and Puerto Rico Major insurers on the island include Humana, Triple-S, MMM Healthcare, and MCS.
These plans are run by private insurers but must cover everything Original Medicare covers. Most bundle Part A, Part B, and Part D into one plan and add benefits Original Medicare doesn’t provide, such as dental, vision, hearing, and fitness. In exchange, you typically use a network of doctors and hospitals and may need referrals for specialists. Many plans on the island carry $0 premiums beyond the standard Part B premium, which is a big reason enrollment is so high.
Service Area Limits
Every Medicare Advantage plan has a defined service area. A mainland-based plan will not cover your routine care if you move to Puerto Rico, and a Puerto Rico plan will not cover routine services on the mainland. Emergency and urgent care are covered anywhere in the United States.1Medicare.gov. Medicare Coverage Outside the United States During the Open Enrollment Period, October 15 through December 7, you can compare plans and switch. Medicare’s plan finder at Medicare.gov and 1-800-MEDICARE both show which plans serve your municipality and include your doctors.
Part D and the Extra Help Gap
Part D prescription drug coverage is available through standalone plans paired with Original Medicare or built into a Medicare Advantage plan. Formularies, premiums, and pharmacy networks vary, so confirm your medications are covered before you enroll.
There is one significant boundary you should know about. By federal statute, people living in Puerto Rico are ineligible for the Low-Income Subsidy, commonly called Extra Help, which provides premium and cost-sharing assistance to low-income Part D enrollees in the 50 states and the District of Columbia.8Centers for Medicare & Medicaid Services. Supporting Medicare in Puerto Rico Lower-income beneficiaries on the island pay more out of pocket for prescriptions than comparable beneficiaries on the mainland. Some Medicare Advantage plans in Puerto Rico offset this with enhanced drug coverage, but the federal subsidy itself is not available.
Medigap Policies
If you stay with Original Medicare, Medigap policies help cover the deductibles, copayments, and coinsurance that Original Medicare leaves to you. Private insurers sell standardized plans in Puerto Rico. The currently available plan letters are A, B, C, D, F, G, K, L, M, and N.9Medicare.gov. Compare Medigap Plan Benefits Plans C and F are available only if you became eligible for Medicare before January 1, 2020.
You must be enrolled in both Part A and Part B to buy a Medigap policy. The best time to shop is the six-month Medigap Open Enrollment Period, which starts the first month you have Part B and are 65 or older. During that window, insurers cannot turn you down or charge more because of health conditions.10Medicare.gov. Get Ready to Buy After it closes, insurers can generally use medical underwriting. Because Part B is a manual step in Puerto Rico, delaying it also delays your guaranteed-issue window for Medigap.
Platino for Dual-Eligible Residents
Residents who qualify for both Medicare and Medicaid can enroll in Medicare Platino, a voluntary managed care program that has operated in Puerto Rico since January 2006. Platino combines Medicare acute and primary care with Medicaid wraparound services, offering coverage roughly equivalent to Puerto Rico’s government health plan, Plan Vital.11Medicaid.gov. Managed Care in Puerto Rico Participating plans include MCS Advantage, MMM Healthcare, and Triple-S Advantage. Covered services include inpatient hospital care, primary and outpatient care, pharmacy, long-term care, personal care and home-based services, behavioral health, dental, and transportation.
Moving Between the Mainland and Puerto Rico
A permanent move triggers specific Medicare rules. If you have a Medicare Advantage plan and move outside its service area, you get a Special Enrollment Period of at least two months (three if you notify the plan before you move) to join a new plan or switch back to Original Medicare.12Medicare.gov. Special Enrollment Periods If you don’t pick a new Advantage plan during that window, you’ll be placed into Original Medicare automatically.
Original Medicare itself transfers without any special steps because it has no network. San Juan, Miami, or Anchorage, the coverage works the same. Medigap is the practical concern: outside your initial open enrollment window, guaranteed-issue rights are limited, so you may need to shop and could face underwriting.
Anyone moving from Puerto Rico to the mainland should confirm their Part B enrollment status before the move. If you never signed up on the island, you won’t have it on the mainland either, and the late enrollment penalty rules still apply.
Finding Providers and Emergency Care
Medicare’s “Find a Doctor” tool at Medicare.gov lets you search for participating physicians, hospitals, and facilities in Puerto Rico by location and specialty. Confirm a provider accepts Medicare assignment before your visit; it takes two minutes and prevents surprise bills.
Both Original Medicare and Medicare Advantage plans must cover emergency and urgent care anywhere in the United States and its territories. You don’t need prior authorization for emergency treatment, and an Advantage plan cannot charge you more for going to an out-of-network emergency room. Carry your Medicare card, and your plan’s member ID card if you have an Advantage plan, so the facility can bill correctly.