Changing your primary care doctor on Medicare is usually simple, and the steps depend on which type of Medicare you have. If you’re on Original Medicare (Parts A and B), there is no form to file and no one to notify. Book an appointment with any doctor who accepts Medicare and that doctor becomes your new primary. If you’re in a Medicare Advantage plan, you contact the plan itself, choose a new primary care physician from its network, and the plan tells you when the switch takes effect. In most cases you can do this at any point in the year.
Original Medicare: Just Book the Appointment
Original Medicare has no provider network. You can see any doctor, hospital, or other provider anywhere in the country that accepts Medicare.1Medicare.gov. Parts of Medicare There is no primary care physician on file with Medicare, so there is nothing to change on paper. You find a new doctor, you make an appointment, and that’s the switch.
The phrase to listen for is “accepts Medicare assignment.” A doctor who accepts assignment agrees to be paid directly by Medicare, to take Medicare’s approved amount as full payment, and not to bill you beyond the standard deductible and coinsurance.2Medicare.gov. Yearly Wellness Visits
Watch for one trap. A small number of doctors have opted out of Medicare entirely. They sign private contracts with patients, and Medicare will not pay for their services except in certain emergency or urgent care situations.3CMS.gov. Additional Guidance on Private Contracting/Opting-out of Medicare An opted-out doctor is not the same as a “non-participating” doctor, who is still enrolled in Medicare and can bill claim by claim. Confirm active participation before your first visit.
If You Also Have Medigap
A Medigap policy sits on top of Original Medicare and helps cover your share of costs like copayments, coinsurance, and deductibles. It doesn’t add a network, so you can still see any doctor who accepts Medicare nationwide.4Medicare.gov. Choosing a Medigap Policy: A Guide to Health Insurance for People with Medicare
One exception exists. Medicare SELECT policies, available in some states, may require you to use specific hospitals and sometimes specific doctors to get full benefits.4Medicare.gov. Choosing a Medigap Policy: A Guide to Health Insurance for People with Medicare If that’s your policy type, check your plan documents before changing providers.
Medicare Advantage: Contact Your Plan
Medicare Advantage plans (Part C) are run by private insurers approved by Medicare, and most use provider networks.5Department of Health and Human Services. What Is Medicare Part C The exact process depends on your plan type, but the starting point is the same: call the member services number on your insurance card, log in to the plan’s online portal, or send a written request. The plan will confirm your new doctor is in-network and tell you the effective date. Most plans allow the change at any time during the year.
HMO Plans
Health Maintenance Organization plans generally require you to pick a primary care physician from the network. Your PCP coordinates your care and handles referrals to specialists. When you request a switch, the plan will walk you through choosing a new doctor and confirm when the change takes effect. If you’re mid-treatment with a specialist, ask whether your existing referral still stands or whether the new PCP has to reissue it.
PPO and Other Plan Types
Preferred Provider Organization plans use a network but give you more flexibility. You can typically see any in-network doctor without a referral, and you can go out of network at a higher cost. Some PPOs don’t formally require you to designate a PCP at all. Point of Service plans blend rules from both models. Each plan can set its own requirements for how you get services, whether referrals are needed, and which providers you can see.5Department of Health and Human Services. What Is Medicare Part C Your plan’s Evidence of Coverage document spells out the specifics.
Finding a Doctor Who Takes Medicare
Medicare’s official Care Compare tool at medicare.gov/care-compare is the most reliable way to confirm a doctor participates in Medicare. You can search by location, specialty, or provider name.6Medicare.gov. Find Doctors and Clinicians Near Me If you’re in a Medicare Advantage plan, also check your plan’s own provider directory, since network rosters change more frequently than the wider Medicare database.
When you call the new doctor’s office, ask two things: whether they are currently accepting new Medicare patients, and whether they accept Medicare assignment. A directory listing doesn’t guarantee availability. Offices sometimes stop taking new Medicare patients while continuing to see existing ones.
Moving Your Medical Records
Under federal law, you have the right to access all of your electronic health information at no cost and to direct your provider to send a copy to anyone you choose.7HealthIT.gov. ONC’s Cures Act Final Rule Providers are required to use standardized technology that lets you reach your records through patient portals and smartphone apps.
Most offices will ask you to complete a records release authorization. Under HIPAA, your former provider must respond within 30 calendar days. If the records are archived off-site, that deadline can be extended one additional 30-day period, but the provider must notify you of the delay in writing.8U.S. Department of Health and Human Services. Individuals’ Right under HIPAA to Access their Health Information Start the request as soon as you’ve decided to switch so your new doctor has your history in hand for the first visit.
A provider that delays, charges excessive fees, or refuses to release your records may be violating federal information-blocking rules under the 21st Century Cures Act. Complaints go to the Office of the National Coordinator for Health IT.
Prior Authorizations and Ongoing Treatment
Prior authorization is when your provider must get plan approval before delivering certain treatments, tests, or services. An authorization tied to your old doctor doesn’t always transfer automatically. If you’re in the middle of a course of treatment when you switch, ask both offices whether the existing authorization will follow you. If it won’t, your new doctor will need to submit a fresh request before the service is covered.
The same caution applies to prescriptions. If you have a Medicare Part D drug plan, verify that anything your new doctor prescribes is on that plan’s formulary. Switching doctors sometimes leads to a change in medications, and it’s worth checking before you run out of refills.
Making the First Visit Useful
Medicare covers an Annual Wellness Visit at no cost to you. There is no copay and the Part B deductible does not apply.2Medicare.gov. Yearly Wellness Visits It’s a natural first appointment with a new primary. The visit includes a review of your medical and family history, current prescriptions, routine measurements, a cognitive assessment, a personalized prevention plan, and a screening schedule. Booking the Annual Wellness Visit as your first appointment gives the new doctor a full picture of your health without generating a surprise bill.
If Your Plan’s Network Doesn’t Have a Good Option
If your Medicare Advantage plan’s network doesn’t include a suitable PCP near you, or the in-network doctors aren’t taking new patients, call member services and ask about an out-of-network exception. Plans sometimes grant these when network adequacy is at issue.
If that doesn’t solve it, you can change plans, but only during set windows. The annual Open Enrollment Period runs October 15 through December 7, with changes taking effect January 1. If you’re already in a Medicare Advantage plan, the Medicare Advantage Open Enrollment Period from January 1 through March 31 lets you switch to a different plan or drop back to Original Medicare. Certain life events, like moving, trigger a Special Enrollment Period for mid-year changes.9Medicare.gov. Joining a Plan
If Your Plan Makes the Switch Difficult
Medicare Advantage plans must follow specific federal requirements for processing grievances and appeals.10CMS.gov. Medicare Managed Care Appeals and Grievances If your plan denies a reasonable request or drags out the change, you can file a grievance directly through the plan or submit a complaint at medicare.gov.11Medicare.gov. Filing a Complaint You can also call 1-800-MEDICARE (1-800-633-4227). Free help with the process is available through your State Health Insurance Assistance Program (SHIP), which can advocate on your behalf.