What People Are Asking
● “Will I be able to keep my doctor when I go on Medicare?”
● What does “accepting assignment” mean?
● Can a doctor charge more than Medicare pays?
● What happens if my doctor does not participate?
Key Takeaways
● Doctors can choose how they participate in Medicare
● Payment rules change depending on participation status
● Some plans have networks, others do not
● Confirming your doctor’s status before enrolling is important
How Medicare Pays Doctors
Under Original Medicare, doctors bill Medicare directly for covered services.
Medicare generally pays about 80% of the approved amount after the deductible of Part B services.
The remaining 20% is usually the patient’s responsibility unless they have additional coverage such as a Medicare Supplement plan.
This payment structure is one reason many people add supplemental coverage.
Doctors Who Accept Medicare Assignment
Many doctors accept Medicare assignment.
This means:
● They agree to accept Medicare’s approved payment amount
● They cannot charge more than Medicare allows
● You are responsible only for deductibles and coinsurance
This is often the most predictable situation for patients.
Doctors Who Participate But Do Not Accept Assignment
Some doctors participate in Medicare but do not always accept assignment.
In these cases:
● They can charge up to 15% more than the Medicare-approved amount
● This is called an excess charge
Not all states allow excess charges.
People considering Medicare Supplement coverage sometimes choose plans that help protect against these costs.
Doctors Who Opt Out of Medicare
A small number of doctors opt out of Medicare completely.
If this happens:
● Medicare does not pay the doctor
● The patient pays privately
● A private contract may be required
This is more common with certain specialties.
Medicare Advantage Changes the Conversation
If someone enrolls in a Medicare Advantage plan, doctor access may depend on:
● Plan networks
● Referrals
● Prior authorization
● Geographic service areas
Note: Even if a doctor accepts Original Medicare, they may not participate in a specific Advantage plan network.
Why This Matters Before Enrolling
Doctor participation can affect:
● Continuity of care
● Out-of-pocket costs
● Access to specialists
● Treatment approvals
This is why many people check their doctor status before choosing a Medicare path.
Q & A: Doctor Participation and Medicare
How can I find out if my doctor accepts Medicare?
You can ask the doctor’s office directly or check
Medicare’s provider search tools.
Does accepting Medicare mean I will have no out-of-pocket costs?
No. Deductibles and coinsurance may still apply.
Can my doctor stop accepting Medicare in the future?
Yes. Doctors can change their participation status.
Will all doctors accept Medicare Advantage plans?
No. Advantage plans often have provider networks that
must be confirmed.
A Practical Takeaway
Whether your doctor accepts Medicare — and how they participate — can affect both access and cost.
Understanding this before enrolling helps people choose coverage that supports their existing care relationships.
