Part C: The Hidden Lien That Comes Back Later

You settled the case. Medicare was paid back. The file is closed. Or so you thought.

If your client had a Medicare Advantage Plan, also known as Part C, that “closed” file could come back to haunt you. Part C liens are the sleeper issue in Medicare Secondary Payer Act (MSP) compliance. Miss one, and your firm could be liable for double damages under a private cause of action brought under the MAO.

Here’s what you need to know to protect your clients and your practice.

What Makes Part C So Dangerous?

Medicare Advantage Plans are not the same as traditional Medicare. They are private insurance plans approved by Medicare that bundle Part A, B, and D benefits. But unlike traditional Medicare, there’s no central clearinghouse like BCRC or CMS that alerts you to Part C lien exposure. This creates a blind spot.

Clients often don’t understand which type of Medicare coverage they have. Even if you asked about Medicare and paid the conditional payment final demand, that doesn’t mean you’ve satisfied every lien. A client could have switched to a Medicare Advantage Plan without your knowledge. If that plan paid for accident-related care, they’re entitled to reimbursement and they can come after you for it.

No Notice, Big Consequences

You won’t be notified about a Part C lien through the standard Medicare conditional payment resolution process. Neither CMS nor BCRC will alert you. And you don’t have direct access to the data that shows which MAO your client might have been enrolled in.

That changed slightly with the PAID Act, which now requires CMS to share a client’s Medicare Advantage enrollment history, but only with Responsible Reporting Entities (RREs). Plaintiff lawyers don’t have access unless the defense is willing to cooperate.

Without this information, a Part C lien might surface months or years after the settlement is disbursed. At that point, it’s too late to pass the cost to anyone else. The MAO can file a private cause of action for double damages under the MSP.

How to Detect a Part C Lien Early

You can’t rely on clients to know or remember their coverage. You need process.  By doing a bit of detective work, here is how you can protect against these hidden liens:

1. Collect insurance cards at intake. Ask for every government and private insurance card, not just the red, white, and blue Medicare card.
2. Verify coverage. Have the client log into their MyMedicare.gov account to check current and past coverage.
3. Review the medical bills. Look for plan names or EOBs that indicate private Medicare Advantage billing.
4. Partner with experts. Specialized lien resolution services can help identify and negotiate these liens.

Why Part C Liens Are Enforceable

MAOs have the same recovery rights as Medicare when it comes to conditional payments. They operate under the same MSP statute. But they also have a big stick: the ability to file a lawsuit for double the lien amount if they’re not paid.  That’s not theoretical. MAOs and their subrogation vendors have already filed these types of suits. Certain jurisdictions have upheld their rights.

What To Do When You Find One

Once you identify a Part C lien, treat it like any other statutory lien.

• Demand documentation. Request itemized statements that tie the charges to accident-related care.
• Push for reductions. MAOs must apply procurement cost reductions and are generally open to negotiation.
• Evaluate compromise or waiver. If the lien would take an unfair portion of the settlement, explore options under the MSP compromise/waiver provisions.

Don’t Wait Until Disbursement

MAO lien exposure needs to be tracked throughout the life of a case. Intake is the first opportunity, but you should re-check coverage again before settlement and once more before disbursement. Treat it like a compliance checklist.

Failure to detect and resolve a Part C lien doesn’t just create client dissatisfaction, it creates real financial exposure for your firm.

Bottom Line

Part C liens are hidden, hard to find, and aggressively enforced. Your best protection is a process-driven approach to identifying MAO coverage as early as possible. Synergy has deep experience resolving these liens and minimizing client and firm exposure.

Don’t let a hidden lien cause you future heartache.