If you’ve received a notice from the Centers for Medicare & Medicaid Services (CMS) or the Office of Inspector General (OIG), it’s easy to feel blindsided and confused.
Two agencies. Two different sets of rules. Both with the power to end your ability to practice.

Physicians often ask:

“Is a CMS revocation the same as an OIG exclusion?”
“If I fix one, does the other automatically go away?”

The short answer: No.

They are separate actions, governed by separate regulations—and resolving one does not automatically reinstate the other.
Understanding that distinction is the first step toward restoring your billing privileges and professional standing.

The Basics: Two Agencies, Two Tracks

Here’s how these two agencies operate and why their actions differ.

Agency Action Type Effect Legal Authority
OIG (Office of Inspector General) Exclusion Bans a provider from all federal healthcare programs (Medicare, Medicaid, TRICARE, etc.) 42 U.S.C. § 1320a-7; 42 C.F.R. Part 1001
CMS (Centers for Medicare & Medicaid Services) Revocation Terminates a provider’s Medicare billing privileges 42 C.F.R. § 424.535
CMS (Preclusion List) Preclusion Blocks participation in Medicare Advantage (Part C) and Prescription Drug Plans (Part D) 42 C.F.R. §§ 422.2, 422.222, 423.100, 423.120(c)(6)
State Medicaid Agencies State Exclusion Bars billing within that state’s Medicaid program (often automatic after OIG exclusion) State mirror statutes

Although they often arise from the same conduct (such as a license suspension or criminal conviction), each action follows its own procedures and timelines.

OIG Exclusion: The Federal Ban

The OIG exclusion program protects federal healthcare programs from individuals or entities that pose a risk to program integrity.

If you are excluded, you cannot bill, supervise, or even work for any entity that receives federal healthcare funding. Your name is publicly listed on the List of Excluded Individuals and Entities (LEIE), and participation in federal healthcare programs becomes illegal.

Reinstatement Process:
You can request reinstatement 120 days before the exclusion period ends, under 42 C.F.R. §§ 1001.3001–1001.3005.
You must show that the cause of your exclusion has been corrected (for example, your medical license has been reinstated, or restitution has been paid).

CMS Revocation: The Medicare Cutoff

A CMS revocation affects only your Medicare billing privileges, not all federal programs.
CMS may revoke a provider’s enrollment under 42 C.F.R. § 424.535 for reasons such as:

  • Loss or suspension of state medical license

  • False or misleading enrollment information

  • Noncompliance with billing requirements

  • Abuse of billing privileges

  • Exclusion by OIG

Once revoked, your Provider Transaction Access Number (PTAN) is terminated, and you may face a 1–10-year re-enrollment bar (up to 20 years for repeat offenses).

Appeal Process:

  1. Reconsideration by the Medicare Administrative Contractor (MAC)

  2. Administrative Law Judge (ALJ) hearing (42 C.F.R. Part 498)

  3. Departmental Appeals Board (DAB) review

  4. Federal court (limited judicial review)

Even if the OIG lifts your exclusion, CMS can still refuse to re-enroll you unless you separately reapply and pass all vetting requirements.

The CMS Preclusion List: The Hidden Barrier

Since 2019, CMS has maintained a Preclusion List that bars certain individuals and entities from Medicare Advantage (Part C) and Part D participation.
You may be placed on this list if:

  • You are revoked and under a re-enrollment bar, or

  • You are excluded by the OIG, or

  • CMS determines you pose a risk to Medicare integrity.

Being precluded means your name is flagged to every Medicare Advantage and prescription drug plan—effectively cutting off reimbursement even if you aren’t formally “excluded.”

This list is one of the most misunderstood parts of the system. Many providers don’t realize they are precluded until claims stop paying.

How OIG Exclusions and CMS Revocations Interact

The two processes often run in parallel—but they do not automatically communicate or resolve each other.

Scenario What Happens
OIG Exclusion Only CMS automatically terminates billing privileges; you must still reapply to CMS after OIG reinstatement.
CMS Revocation Only You lose Medicare billing privileges, but may avoid OIG exclusion if no fraud or misconduct triggers it.
Both Occur You must pursue two separate reinstatement paths: first OIG, then CMS.
State Medicaid Exclusion Most states automatically mirror OIG actions; you’ll need to separately contact each state’s Medicaid agency for reinstatement.

Dual-Track Reinstatement Flowchart

Below is a simplified roadmap of how the reinstatement process works when both actions occur.

Step 1: Confirm Basis of Action
→ Review CMS and OIG letters to identify the cause and effective dates.

Step 2: OIG Reinstatement (42 C.F.R. §§ 1001.3001–1001.3005)
→ Apply ≤ 120 days before exclusion ends.
→ Provide documentation of rehabilitation and compliance.
→ Await OIG approval (removal from LEIE).

Step 3: CMS Re-Enrollment (42 C.F.R. § 424.535)
→ Submit new CMS-855 form after OIG reinstatement.
→ Undergo site verification, credential checks, and compliance review.
→ Receive CMS approval and new PTAN.

Step 4: Notify State Medicaid Agencies
→ Provide OIG and CMS reinstatement letters to restore state participation.

Why This Distinction Matters for Your License and Career

Understanding the difference between CMS revocation and OIG exclusion is vital for timing and strategy.
Filing the wrong form or waiting for one agency to act can delay reinstatement by months or even years.

At National Security Law Firm (NSLF), we monitor both tracks simultaneously—tracking OIG timelines, CMS appeal windows, and state-level reinstatement requirements to ensure nothing falls through the cracks.

Led by Duane “Dak” Kees

Led by Duane “Dak” Kees, a former U.S. Attorney with strong relationships throughout the federal government as a result of his service as both a U.S. Attorney and a military judge, our team knows how to work within the system to restore eligibility and rebuild trust with federal healthcare programs.
Learn more about Dak’s background here.

Explore More Resources

If you or someone you know is facing an OIG exclusion or CMS revocation, visit our HHS Exclusion & CMS Revocation Resource Hub for step-by-step guides, timelines, and strategies from our federal healthcare defense team.

At National Security Law Firm, we help physicians, pharmacists, and healthcare providers nationwide navigate reinstatement, appeal, and compliance with precision and integrity.

Why Choose National Security Law Firm

  • Former Federal and Military Lawyers — Our attorneys include former prosecutors, military judges, and agency counsel.

  • Nationwide Representation — We assist providers across all 50 states.

  • 4.9-Star Client Reviews: Read Our Google Reviews Here

  • Strategic Process Management — We handle both OIG and CMS tracks simultaneously.

  • Free Consultations — No pressure, just clear guidance and actionable strategy.

Ready to Restore Your Federal Program Eligibility?

You’ve worked too hard to let regulatory confusion end your medical career. Our attorneys will review your exclusion or revocation notice, map out your reinstatement path, and handle every step—from appeals to full re-enrollment.

Consultations are free, confidential, and pressure-free.

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