Clinic owner and attorney drafting a Medicare payment suspension rebuttal after a notice of suspension

Medicare Payment Suspension Rebuttal: The 15-Day Floor

By Reynaldo T. Acosta, Esq., Head of Litigation, Vitale, Suarez & Associates, P.A. · Miami Lakes, Florida

A Medicare payment suspension can start before you have finished reading the notice. The notice opens a window for a Medicare payment suspension rebuttal, and the rule sets that window as at least 15 days from notification. It does not set a window that is long enough to start preparing after the notice arrives.

If you run a practice, clinic, laboratory, home health agency, or facility and a Medicare contractor has told you it intends to suspend your payments, or has already suspended them, you need to know four things in the first days: what kind of suspension it is, whether you were entitled to advance notice, how much time you have to respond, and what the contractor must do with your response. Those four answers decide whether the rebuttal is a real opportunity or a form you send into the file.

In plain terms, a payment suspension is a withholding of Medicare payments to a provider or supplier, in whole or in part, under 42 C.F.R. §§ 405.371 through 405.375. It is not the same as recoupment, which recovers an overpayment that has already been determined. The article on the Medicare overpayment appeal process covers recoupment and the five appeal levels.

Suspension Is Not Recoupment

The two terms are used loosely, and the difference matters because the rules for each are different.

A suspension withholds payment while something is still being decided. A contractor may withhold all or part of payments when it has reliable information that an overpayment exists, or that upcoming payments may be incorrect, even if more information is needed. In suspected fraud cases, CMS or a contractor may withhold payments after consulting the Office of Inspector General and, as appropriate, the Department of Justice, and finding a credible allegation of fraud, unless good cause exists not to suspend (42 C.F.R. § 405.371(a)).

Recoupment, by contrast, applies once CMS or a contractor determines that a provider or supplier was overpaid. It follows its own rule in § 405.373, and it is subject to the pauses in § 405.379 at the first two appeal levels. The article on the Medicare overpayment demand letter covers the dates that matter there.

The rules also name two other situations. A provider that does not timely file an acceptable cost report, or a hospice that does not timely file a cap determination report, can have payments suspended immediately in whole or in part until an acceptable report is filed. In those cases the notice-and-rebuttal rule in § 405.372 does not apply (§ 405.371(d)-(e)).

When You Are Entitled to Notice

For the first kind of suspension, the contractor must notify you before it takes effect. The notice must state the intent to suspend payments, in whole or in part, and the reasons (42 C.F.R. § 405.372(a)(1)). By the time you read the notice, the contractor may already have settled on its reason, and the rebuttal is how your account of the facts reaches the file.

The rule lists three situations in which no advance notice is required.

  • Failure to furnish information. Payments are suspended because you did not submit information the contractor requested to determine the amounts due (§ 405.372(a)(2)).
  • Harm to the Medicare Trust Funds. CMS, an intermediary, or a carrier determines that giving notice would harm the Trust Funds, such as by hindering recovery of the money (§ 405.372(a)(3)).
  • Credible allegation of fraud. For suspensions based on credible allegations of fraud, CMS, in consultation with the OIG and possibly the Department of Justice, decides whether to suspend and whether prior notice is appropriate, and directs the timing and content of any notice (§ 405.372(a)(4)).

If the suspension takes effect without prior notice, the contractor must still give you a chance to submit a rebuttal explaining why it should be lifted (§ 405.372(b)(2)). That opportunity comes after, not before.

Do not assume that a suspension begins with a notice. It may begin with a missed deposit.

The Medicare Payment Suspension Rebuttal and the 15-Day Floor

Before a suspension, offset, or recoupment takes effect, the Medicare contractor must notify the provider or supplier and give it a chance to submit a statement explaining why the action should not take effect on the date stated in the notice. Unless the exception applies, you have at least 15 days from notification to respond. For good cause, the contractor may shorten the response period or extend the deadline (42 C.F.R. § 405.374).

Read the second sentence again. The 15 days are a floor, and the same rule allows the contractor to shorten the period for good cause. The deadline that governs is the one stated in your notice. Calendar it from the date you can prove you received it, and treat any shorter period as the real deadline.

The consequence of missing it is automatic. If a rebuttal arrives within the time stated in the notice, the suspension takes effect on the date stated, and § 405.375 governs what happens next. If no rebuttal arrives by the deadline, the suspension takes effect automatically (§ 405.372(b)(1)).

The rule describes the rebuttal as a statement explaining why the action should not take effect. It does not list what the statement must contain. That means the content is a judgment call, and the section below covers what a rebuttal usually needs to do.

What the Contractor Must Do With Your Rebuttal

After it receives your statement, CMS, the intermediary, or the carrier has 15 days to review the statement, any supporting evidence, and other relevant material, and to decide whether the facts support the action or, if it has already started, support ending it. The action is not put on hold past the date in the notice while the review happens (42 C.F.R. § 405.375(a)).

The contractor must send written notice of its decision. For a suspension, the notice must state specific findings on the conditions for starting, continuing, or lifting the suspension, together with an explanatory statement of the decision (§ 405.375(b)).

Two consequences follow, and both are uncomfortable. First, filing a rebuttal does not stop the suspension from starting on the stated date. Second, a decision on the rebuttal is not an initial determination, so it cannot be appealed (§ 405.375(c)). The rebuttal is the review. The control exists in that one filing, and the contractor controls what happens next.

If a later overpayment determination is issued, it is a different decision. Read its notice for the appeal rights it identifies and calendar the dates in the article on Medicare appeal deadlines.

How Long a Suspension Can Last

A suspension generally lasts up to 180 days from its start date. An intermediary, a carrier, or, for fraud and misrepresentation, the OIG or a law enforcement agency may request a one-time extension of up to 180 more days, in writing to CMS. CMS then notifies the provider and either extends the suspension or releases the payments (§ 405.372(d)).

Those time limits do not apply to fraud-based suspensions. They remain temporary and end when the investigation is resolved, unless reliable evidence of an overpayment or incorrect payments justifies continuing under § 405.371(a)(1) (§ 405.372(d)(3)). For fraud-based suspensions, CMS must reassess good cause every 180 days and request certification from the OIG or the law enforcement agency that the matter is still under investigation. After 18 months without resolution, good cause to stop the suspension is deemed to exist, unless CMS extends it because the case is under OIG consideration for administrative action, or because the Department of Justice submits a written request identifying the entity, the time needed, and how the proceedings would be affected without an extension (§ 405.371(b)).

The contractor also has a duty to move. For a suspension based on reliable information of an overpayment, CMS or the contractor must promptly gather the information needed to decide whether an overpayment exists and make reasonable efforts to speed up that decision (§ 405.372(c)(1)).

What Happens to the Money

Suspended funds are not returned automatically. They first reduce any overpayments found by the contractor or CMS, including interest under § 405.378. The remainder reduces other obligations owed to CMS or HHS. Any excess goes to the provider or supplier unless another entity must legally receive it (§ 405.372(e)).

Plan the cash on that basis. A suspension is a cash event on day one and a legal event on a much later day. Interest is a separate subject, and the rules set it by formula, so do not budget from a percentage you have read elsewhere.

What a Rebuttal Usually Needs to Do

The rule does not prescribe contents, so the following is practical guidance and not a quotation of a requirement.

A rebuttal is read by someone deciding whether the facts support starting, continuing, or lifting the suspension, and the decision must state findings on those conditions. A rebuttal that speaks to those conditions is easier to evaluate than one that argues the whole case.

  • State the specific reason the action should not take effect. If the contractor says it has reliable information of an overpayment, address that information. If it says payments may be incorrect, address why they are not.
  • Attach the evidence. The contractor reviews the statement and any supporting evidence. A statement with no documents is a position, not a showing.
  • Address the payments at stake. If the suspension is in whole, say why a partial suspension would be enough, if that is your position, and say what the full withholding does to operations.
  • Stay consistent with everything you have said. A rebuttal that conflicts with an earlier cover letter or phone note is worse than a short one.
  • Do not argue what the rule does not ask. The question is whether the action should take effect, not whether every claim in the file was correct.

What to Do in the First 72 Hours

Hour 1: find the notice and the date you received it

Record how and when it arrived, and who opened it. The response window runs from notification, and the contractor may have set a period shorter than 15 days for good cause. If your policy says every government notice is logged on the day it arrives but this one sat in a shared inbox, the control exists on paper only.

Hours 2 to 24: identify which rule the notice relies on

Read the notice for the stated basis. A suspension based on reliable information of an overpayment follows § 405.371(a)(1). A suspension based on a credible allegation of fraud follows § 405.371(a)(2) and has different notice and timing rules. If the notice does not say, ask counsel to find out.

Hours 24 to 48: preserve and collect

Preserve every record at issue, suspend routine deletion, and route every contact with the contractor through one person. Collect the claims, the medical records, and the billing and audit documents the notice refers to.

Hours 48 to 72: calendar and fund

Put the response deadline, the 15-day review period, and the 180-day mark on one calendar. Decide how operations will run if payments stay withheld, and consider whether the cash position supports asking for an extension of the response period for good cause.

Common Provider Mistakes With Payment Suspensions

Treating the 15 Days as Guaranteed

The 15 days are a floor, and the contractor may shorten the period for good cause. The deadline in your notice is the one that counts.

Assuming the Suspension Waits for the Rebuttal

The contractor’s review does not hold the action past the date in the notice. A provider that waits for a decision before planning cash has already lost the planning window.

Expecting an Appeal of the Rebuttal Decision

A decision on the rebuttal is not an initial determination and cannot be appealed. The rebuttal is the one chance the rule provides at that stage, and it should be written that way.

Ignoring a Suspension That Arrived Without Notice

When no advance notice is required, the opportunity to rebut comes after the suspension starts. A provider that waits for a notice that is not coming loses days.

Making Informal Explanations That Become Admissions

A casual comment such as “we knew those claims were thin,” “the documentation was never really complete,” or “we have been behind on records for months” can later be cited as evidence of knowledge or systemic failure. Calls to the contractor, emails to a reviewer, and cover letters are part of the record. Your rebuttal is part of the evidentiary record.

Troubleshooting: When the Suspension Is Tied to Fraud

If the notice or the circumstances point to a credible allegation of fraud, treat the matter as an investigation and not as an audit. CMS decides whether to suspend and whether to give advance notice, in consultation with the OIG and possibly the Department of Justice, and the 180-day and 18-month rules operate differently. Do not call the contractor to explain. Do not speak to investigators without counsel. The pages on Medicare and Medicaid fraud defense and defense investigations describe how these matters are handled, and the article on preventing government audits covers the steps that come before them.

If the suspension is based on a failure to furnish information, the fastest path is often to furnish it. Read the request, identify what was not sent, and decide how to produce it.

If the suspension has already lasted close to 180 days, check whether an extension has been requested. The rule requires the request to be in writing to CMS and the provider to be notified of the decision.

Expected Outcome: A Rebuttal in the File and a Calendar You Can Trust

A well-prepared response produces a rebuttal that was filed before the deadline in the notice, speaks to the conditions the contractor must find, attaches the evidence, and sits next to a cash plan that does not depend on its result. It does not guarantee that the suspension will be lifted. It makes sure the one review the rule provides is a real one.

30-Day, 90-Day, and Ongoing Priorities

  • Next 30 days. File the rebuttal on time. Fund operations for the full suspension period. Track the contractor’s review and any extension request.
  • Next 90 days. Resolve the underlying questions that produced the suspension, whether documentation, billing, or coding. Preserve the file in case an overpayment determination follows.
  • Ongoing. Keep a response procedure for contractor notices, with one owner and one deadline calendar. Review the process after any staffing change.

When Counsel Should Be Involved

A payment suspension justifies a call before anything is filed. If the notice mentions fraud or an investigation, if the suspension is in whole, if the 15 days are about to end, or if the matter arrived with a records request or a subpoena, the first filing shapes the rest of the case. If counsel directs the review, communications about legal exposure may be better protected under the attorney-client privilege than informal email among billing and operations staff, where the privilege applies. These matters are described on the pages for Medicare and Medicaid overpayments, Medicare and Medicaid fraud defense, and defense investigations, and the practice areas page lists the rest.

These rules are federal and apply wherever the demand originates.

The practical decision rule is simple: if you cannot say which rule the notice relies on, if you have not calendared the deadline in the notice, or if the cash plan assumes the suspension will be lifted, the response is not ready. File the rebuttal inside the window, not after it.

Frequently Asked Questions

What is a Medicare payment suspension?

It is a withholding of all or part of Medicare payments to a provider or supplier, such as when a contractor has reliable information that an overpayment exists, or when there is a credible allegation of fraud (42 C.F.R. § 405.371(a)).

How long do you have to respond to a payment suspension notice?

At least 15 days from notification, unless the contractor shortens the period for good cause. The deadline in your notice is the one that governs (42 C.F.R. § 405.374).

Is notice always required before a suspension?

No. Advance notice is not required when payments are suspended for failure to furnish requested information, when notice would harm the Medicare Trust Funds, or for a suspension based on a credible allegation of fraud, where CMS decides whether to give notice (42 C.F.R. § 405.372(a)).

What happens after you submit a rebuttal?

The contractor has 15 days from receiving it to review the statement and the evidence and decide whether the facts support the action. The action is not put on hold past the date in the notice, and the decision must be in writing with specific findings (42 C.F.R. § 405.375).

Can you appeal the decision on your rebuttal?

No. A decision on the rebuttal is not an initial determination, so it cannot be appealed (42 C.F.R. § 405.375(c)).

How long can a suspension last?

Generally up to 180 days, with a one-time extension of up to 180 more days on written request to CMS. Those limits do not apply to fraud-based suspensions, which end when the investigation is resolved, subject to the reassessment and 18-month rules in 42 C.F.R. §§ 405.371(b) and 405.372(d).

About the author. Reynaldo T. Acosta heads the litigation practice at Vitale, Suarez & Associates, P.A. in Miami Lakes, Florida, the firm founded in 1982 as The Health Law Offices of Anthony C. Vitale, P.A. He is a member of The Florida Bar and earned his J.D. from Florida International University College of Law, where he was named to the Dean’s List and competed on the International Commercial Arbitration and the Negotiation and Mediation teams. He also holds a B.S. in Criminal Justice and Public Management with a minor in Political Science from Florida International University, and advanced certifications in generative artificial intelligence, machine learning, and agentic systems from IBM, Anthropic, and Microsoft. He is a member of the American Bar Association, the Hispanic National Bar Association, and the Cuban American Bar Association, and works with clients in English and Spanish. Learn more about the firm.

This article is for general information purposes only and should not be taken as legal advice for any individual case or situation. Reading it, or corresponding with us through this site, is not intended to create and does not create an attorney-client relationship. Federal and Florida healthcare regulations change frequently, and how any rule applies depends on the specific facts of your arrangement, your payor contracts, and your jurisdiction. Vitale, Suarez & Associates, P.A. is based in Miami Lakes, Florida and represents clients in Florida. If you have received an audit notice, records request, subpoena, civil investigative demand, or overpayment demand, speak with a licensed attorney before you respond.

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