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How does a doctor’s participation in Medicare affect reimbursement?

Q: How does a doctor’s participating in Medicare affect reimbursement?

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A: Medicare reimbursement refers to the payments that hospitals and physicians receive in return for services rendered to Medicare beneficiaries. The reimbursement rates for these services are set by Medicare, and are typically less than the amount billed or the amount that a private insurance company would pay.

Based on the degree to which they accept reimbursement from Medicare, providers fall into three categories.

What is a Medicare participating provider?

Physicians who agree to fully accept the rates set by Medicare are referred to as participating providers. They accept Medicare’s reimbursements for all Medicare-covered services, for all Medicare patients, and bill Medicare directly for covered services. Most eligible providers are in this category. A Kaiser Family Foundation analysis found that 93 percent of non-pediatric primary care physicians were participating providers with Medicare in 2015, but only 72 percent were accepting new Medicare patients.

Medicare has a search tool you can use to find out if your doctor is a participating provider.

What is a non-participating Medicare provider?

Because the reimbursement rates are generally lower than physicians receive from private insurance carriers, some physicians opt to be non-participating providers. This means that they haven’t signed a contract agreeing to accept Medicare reimbursement as payment-in-full for all services, but they can agree to accept Medicare reimbursement for some procedures.

If you receive treatment from a non-participating provider who doesn’t accept assignment for the treatment you receive, you may have to pay the bill up front and seek reimbursement from Medicare for the portion they’ll pay. In this case, the provider is paid 95 percent of the fee schedule amount, and can only bill you up to 15 percent more than the Medicare rate. (Note that states can further limit this; New York, for example, limits it to 5 percent.)

What is a Medicare opt-out provider?

A small number of doctors (less than 1 percent of eligible physicians) opt out of Medicare entirely, meaning that they do not accept Medicare reimbursement as payment-in-full for any services, for any Medicare patients.

If a Medicare beneficiary receives services from one of these doctors, the patient must pay the entire bill; Medicare will not reimburse the doctor or the patient for any portion of the bill, and the provider can set whatever fees they choose. Of the tiny fraction of doctors who have opted out of Medicare entirely, 42 percent are psychiatrists. And although the number of doctors opting out increased sharply from 2012 to 2016, it dropped in 2017, with 3,732 doctors opting out. CMS maintains a webpage that lists providers who are currently opted out of Medicare.


Louise Norris is an individual health insurance broker who has been writing about health insurance and health reform since 2006. She has written dozens of opinions and educational pieces about the Affordable Care Act for healthinsurance.org. Her state health exchange updates are regularly cited by media who cover health reform and by other health insurance experts.

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Jonathan Davis
Jonathan Davis
9 months ago

I’m sopp b getting rienburst for money that was taken outta my check for part b Medicare cause the state was already payi g for this for me where I quilified through the low invlcome thing but I’ve not received payment yet it’s been over a month now can u please help me? Thanks

Josh Schultz
Admin
Josh Schultz
9 months ago
Reply to  Jonathan Davis

It sounds like you qualified for the Medicare Savings Program (MSP) and your state has begun paying the Part B premium and it’s no longer withheld from you monthly Social Security check.

It usually takes several months between when you are approved for MSP benefits and the Part B payment is no longer withheld. Eventually, you’ll ultimately receive an additional reimbursement via Social Security for the months where premiums were withheld after you were approved. If you have questions about this timeline, you may wish to contact your local Medicaid office.

Barbara L. Sarao
Barbara L. Sarao
2 months ago

If a Physician orders a test such as an MRI and Medicare covers the cost, does the Dr. receive reimbursement for making the referral? In what form is the reimbursement?

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