What "Accepts Medicare Assignment" Means
A doctor who accepts assignment takes the Medicare-approved amount as payment in full for a covered service, and agrees to charge you only the Medicare deductible and coinsurance. Being in Medicare's records doesn't always mean a doctor accepts assignment for your visit, so ask the office first.
What Assignment Means
Medicare sets an approved amount for each covered service. Medicare.gov says you can get the lowest cost when a provider accepts the Medicare-approved amount as payment in full. That is called accepting assignment.
Assignment is about Original Medicare billing. It doesn't tell you whether a doctor is taking new patients, and it doesn't tell you whether a doctor is in a Medicare Advantage plan's network.
This guide explains how to find and check care. It can't tell you which doctor or treatment is right for you. Your doctor or plan can.
The Three Kinds of Provider
| Provider | What Medicare.gov says |
|---|---|
| Accepts assignment | Agrees to charge you only the Medicare deductible and coinsurance. |
| Non-participating | Doesn't accept assignment for everything, but may accept it case by case. In many cases, the charge can't be more than 15% above the Medicare-approved amount. That amount is called the limiting charge. You might have to pay the full amount at the time of service. |
| Opted out | Doesn't want to work with the Medicare program. Medicare won't pay for items or services from this provider, except in emergencies. You may need to pay upfront or set up a payment plan through a private contract. |
What Our Pages Show
Each doctor page repeats what the public CMS file says, with the date of the file. A value of Y appears as "Accepts the Medicare-approved amount as payment in full." A value of M appears as "May accept Medicare assignment. Ask the office." We use CMS's words because no CMS page we read says exactly how M lines up with the terms above.
The file can lag behind real life, and a doctor's own group can have a different value from the doctor. The office has the final word.
What to Ask the Office
- Do you accept Medicare assignment for this visit?
- Are you taking new Medicare patients?
- If I have a Medicare Advantage plan, are you in its network?
- Will I need to pay anything at the time of the visit?
For the 2026 amounts, see what you pay for a doctor visit.
You can print these on the caregiver checklist.
Common Questions
Does this site show who accepts assignment?
Yes, as the CMS file states it, with the date of the data. Always confirm with the office.
Is assignment the same as taking new patients?
No. The CMS file doesn't show whether a doctor is taking new patients.
Does assignment apply to Medicare Advantage plans?
Medicare Advantage plans have their own networks and costs. Ask your plan what you would pay.