Medicare: To Participate or Not to Participate?




Understanding options can help you make a better decision about your status.

During the last six weeks of each year (Nov. 15-Dec. 31), providers are permitted to change their participation status with Medicare. In making this decision, many questions may arise: What does participating vs. non-participating mean? What are the pros and cons of each option? How do I change my status? The information below can help you make a more informed decision. 


“Par” versus “Non-par”
Simply put, the primary difference between the two statuses lies in how you collect your fees. Participating providers must accept assignment (wait for payment directly from Medicare), while non-participating providers may collect up-front from the patient (non-assigned claims). That is, if you are a participating provider, your patient pays you a deductible and co-insurance and then Medicare reimburses you for the rest of the allowed fee.  Non-participating providers may collect their allowed fees in full from the patient and the beneficiary is then, in turn, partially reimbursed by Medicare. For non-covered services (anything that is NOT spinal manipulation), all providers, regardless of status, may collect up-front from the patient.


Billing as a Participating Provider
As a participating provider, if the beneficiary’s deductible has not been met, you may collect the “par allowable” amount from your patient in full and bill Medicare your regular fee. Any difference between the two amounts is written off as a loss. Note that the par allowable amount is determined by the fee schedule for your carrier/MAC and geographic area. You are encouraged to check with your local Medicare contractor, or use the ACA Web site, to find the most up-to-date information.

If you are a participating provider and the deductible has been met, your patient is responsible for 20 percent of the par allowable fee and you could still bill Medicare for up to your regular fee. Medicare would then pay you 80 percent of the par allowable and, again, any difference between the billed fee and the allowed fee is written off as a loss.


Billing as a Non-Participating Provider
For non-participating providers, the process is different.  If you are non-par, not accepting assignment, and the patient’s deductible has not been met, you are subject to charging a maximum of the limiting charge (determined by your fee schedule). Your patient pays you the full amount of up to the limiting charge, you bill Medicare for the fee (up to the limiting charge), and Medicare applies the non-par allowable fee to the patient’s deductible. 

If you are non-participating, not accepting assignment, and the deductible has been met, your patient would still pay you up to the limiting charge and you would still bill Medicare for that amount. Medicare would then reimburse the patient 80% of the non-par allowable fee.

If you are a non-participating provider that accepts assignment, you must accept the non-par allowable as payment in full. If the patient’s deductible has not been met, the patient pays the full non-par allowable. If the patient’s deductible has been met, the patient would be responsible for 20 percent of the non-par allowable fee and Medicare would reimburse you for the remaining 80 percent. Again, as with par, any difference between allowed and billed fees must be written off.








 Dear Doctors,

Dealing with Medicare has never been an issue for Dental Practice before!  However we need to make sure if we are doing any work with patients for biopsy, ct scan, or durable medical appliances you really should add your patients will not receive payment if you are not register.

Karls, my amazing assistant has put together the different ways you can add your name.

Pros and Cons
 Participating providers have the advantage of being able to enter any fees they wish on the claim form when billing Medicare and the carrier will adjust the amount to reflect the current allowable fees determined by the fee schedule. This can be useful in times when the fee schedule levels are changing or uncertain and may ease the burden of locating the current values.

Participating providers also would be listed in the MedParD (Medicare Participating Directory). This is a directory of all current participating providers and is sent to every Medicare beneficiary at the beginning of each year.

In addition, participating providers always have the right to appeal. This is not true for non-par providers.

Opting Out of Medicare
 Please note that the requirements for opting out of Medicare are quite involved and many doctors find them to be overwhelming. It’s not as simple as signing a form and becoming a cash practice. There are numerous regulations that must be followed and practices that must be upheld (e.g., fee restrictions). Less than 2 percent of eligible providers choose to opt out of Medicare.

Changing Your Status
Typically providers are given the last six weeks of the calendar year (Nov. 15-Dec. 31) to change their participation status. Once made, the decision is binding throughout the following calendar year (unless the decision period is re-opened). Another exception could be in situations where a physician’s practice changes significantly, such as relocation to a different geographic area or transformation into a group practice.

If you are currently non-participating and wish to become participating, you must sign a participation agreement (available from your carrier). If you are currently a participating provider and wish to become non-participating, you will need to submit a letter (on office letterhead) to your local carrier or administrative contractor stating your intent to become non-participating. This letter must include an original signature of the authorized representative or individual provider. If you wish your status to remain unchanged, you need not do anything.

Christine Taxin
36 Abington Avenue
Ardsley New York 10502
United States of America