A Medicare payment suspension imposed by a Unified Program Integrity Contractor (UPIC) can cut off a physician practice's Medicare cash flow within days of a fraud referral, before any court, administrative law judge, or the practice itself has reviewed the underlying allegation. The trigger is a credible allegation of fraud, a defined regulatory standard rather than a mere suspicion. Once that standard is met, CMS or its contractor may suspend payment without advance notice. The governing framework sits at 42 CFR 405.371 and 405.372, and the practical stakes are immediate: every claim submitted during the suspension goes unpaid until the matter is resolved or a rebuttal succeeds.
The Credible Allegation of Fraud Standard
CMS defines credible allegation of fraud at 42 CFR 405.370 as an allegation from any source, including fraud hotline tips verified by further evidence, claims data mining, and patterns identified through provider audits, civil False Claims Act cases, or law enforcement investigations. An allegation is credible once it carries indicia of reliability, a standard CMS applies case by case rather than through a fixed checklist. The Medicare definition closely tracks the parallel standard CMS uses for Medicaid program integrity purposes at 42 CFR 455.2. Both share the same practical consequence: the standard calls for reliable information, not proof of guilt, and a UPIC can meet it well before any indictment, civil complaint, or administrative finding exists.
How a UPIC Suspension Takes Effect
A suspension based on a credible allegation of fraud can take effect without the advance notice generally required for an overpayment based suspension under 405.371(a)(1), because advance warning would put program funds at risk and could compromise the underlying investigation. The UPIC notifies the physician after the suspension begins, states the general reasons to the extent disclosure will not compromise the investigation, and refers the matter for law enforcement review by the HHS Office of Inspector General (OIG) and, where appropriate, the Department of Justice (DOJ). Amounts withheld are applied first to any identified overpayment or other obligation owed to CMS or HHS, with the remainder released to the provider, a mechanism that functions like an involuntary recoupment while the allegation is pending.
The Fifteen-Day Rebuttal Window
A physician who receives a suspension notice has an opportunity for rebuttal under 42 CFR 405.374, generally 15 days from the date of the notice, to submit a written statement and supporting evidence explaining why the suspension should not have been imposed or should be lifted. CMS or the contractor must then consider that statement, together with any other material bearing on the case, and determine whether the facts still justify continuing or terminating the suspension. An effective rebuttal attacks the reliability of the specific information CMS relied on, a billing pattern with an innocent explanation, or a hotline tip that conflicts with the practice's own records, rather than re-arguing the fraud allegation in the abstract.
A credible allegation of fraud is the threshold for suspending payment, not a finding of guilt, and it is enough on its own to stop every Medicare payment to a practice without a hearing.
Duration Limits and Good Cause Review
A standard overpayment based suspension is capped at 180 days, with one discretionary extension of up to 180 additional days if the contractor cannot finish its review in time. A fraud based suspension escapes that specific numeric cap, though CMS must revisit it at least every 180 days, and good cause to discontinue the suspension is deemed to exist once 18 months have passed without a resolution of the investigation. CMS may extend the suspension beyond 18 months only if OIG has referred the matter for administrative action or DOJ submits a written request tied to a pending or anticipated criminal or civil proceeding. Resolution occurs when the legal action ends by settlement, judgment, or dismissal, or when the government closes the case for insufficient evidence.
Why Early Legal Counsel Is Critical
It is critical that physicians promptly retain experienced healthcare defense counsel upon receiving a payment suspension notice, target letter, audit notice, or other government inquiry. Early legal intervention can protect the physician's rights, ensure appropriate responses to government requests, avoid inadvertent admissions, preserve relevant defenses, and allow counsel to communicate with investigators on the physician's behalf. Delaying legal representation can significantly affect the outcome of a matter and expose the physician to unnecessary risk, particularly given a rebuttal window measured in days rather than months.
How Health Law Alliance Can Help
Health Law Alliance defends physicians facing UPIC initiated payment suspensions, beginning with the first notice and continuing through the rebuttal statement and any related referral to OIG or the Department of Justice. The firm's attorneys have overseen 2,000+ audits and understand how UPICs build a credible allegation of fraud case and what CMS weighs when deciding whether to continue a suspension. If your practice has received a payment suspension notice, contact us for a free, confidential consultation through the firm's UPIC audit defense practice.
