The single most consequential misunderstanding about OIG exclusion is this: your exclusion does not end when your exclusion period ends.

A five-year exclusion imposed in 2021 does not lift itself in 2026. The individual remains excluded — barred from federal health care program participation, still on the LEIE — until they apply for reinstatement and receive written notice from OIG that it has been granted. Providers who assume otherwise, return to work, and start seeing federally insured patients are creating fresh liability for themselves and for whoever employed them.

Here is how the process actually works.

Reinstatement is not automatic — and there are no shortcuts

OIG is unambiguous on this point. Reinstatement requires an affirmative application and an authorized notice from OIG. Several related assumptions are also wrong:

• Obtaining a provider number does not reinstate you. Getting a billing number from a Medicare contractor, a state agency, or a federal health care program has no effect on exclusion status. Systems are imperfect and numbers do sometimes get issued in error; that does not make participation lawful.
• There is no early reinstatement. Applications filed before the eligible window are not considered.
• There is no retroactive reinstatement. If the application is filed late, eligibility begins when reinstatement is granted — not when the exclusion term technically expired. Every month of delay is a month of continued exclusion.

That last point is the expensive one. A provider who waits until their term expires to start the process, then waits out a four-month review, has spent four additional months excluded for no reason other than timing.

Step 1: Determine when you are eligible to apply

The window depends on the exclusion authority.

For exclusions with a defined term — the five-year mandatory exclusions and most permissive exclusions with a set period — you may begin the reinstatement process 90 days before the end date specified in your exclusion notice letter. Not earlier. Premature requests are simply not considered.

Filing at the front of that 90-day window is the single most useful thing an excluded party can do, because it lets OIG’s review run concurrently with the tail end of the exclusion period rather than after it.

For indefinite exclusions under Section 1128(b)(4) — those based on loss, suspension, or surrender of a health care license — there is no end date. Eligibility is instead tied to license status. You may apply when you regain the license referenced in the exclusion notice. Under certain conditions, you may also apply if you have obtained a different health care license in the same state, obtained any health care license in a different state, or have been excluded for a minimum of three years.

Start by locating your exclusion notice letter. It states the authority and the term, and everything about your eligibility flows from those two facts.

Step 2: Submit the written request

The process begins with a written request to OIG’s exclusions unit. It should include, at minimum:

• Your full legal name, and any other name under which the exclusion was imposed
• Date of birth
• Social Security number
• Current mailing address and contact information
• NPI, if applicable
• The date the exclusion period ends, or the basis on which you are eligible under 1128(b)(4)

Requests are directed to HHS OIG, Office of Investigations, Attn: Exclusions, and OIG accepts submissions by mail, fax, and email. Confirm the current address and contact details on OIG’s exclusions page before sending — they have changed over the years, and outdated information circulates widely online.

Keep proof of what you sent and when. Date-stamped copies and delivery confirmation are worth having if the timeline slips.

Step 3: Complete the Statement and Authorization forms

If you are eligible, OIG will send you Statement and Authorization forms. These are the substance of the application. They must be completed in full, notarized, and returned.

The Authorization form permits OIG to obtain information about you from third parties — private health insurers, peer review bodies, probation officers, licensing boards, professional associates, and investigative agencies — in order to evaluate the request.

Practical guidance on completing them:

• Complete every section. Blank fields generate follow-up correspondence and delay.
• Disclose your full residency and employment history for the exclusion period. Every address, every job, no gaps. Omissions are the most common cause of delay, and an unexplained gap invites scrutiny.
• Be consistent. Names, dates, and identifiers should match across every document. Discrepancies get flagged.
• Do not skip the notarization. Un-notarized forms are returned.

Step 4: Wait for the decision

OIG evaluates the submission and sends written notification of its decision. The process generally takes up to 120 days, and can take longer if circumstances warrant.

Build that into your planning. Combined with the 90-day early filing window, a well-timed application can produce reinstatement close to the exclusion end date. A late application produces a gap of four months or more during which you remain excluded and unable to work in any federally reimbursed capacity.

If reinstatement is denied

Denial is not the end, but it is a significant setback: after a denial, you must wait a full year before reapplying.

OIG grants reinstatement when it is reasonably confident that the conduct underlying the exclusion has not recurred and will not recur. The considerations generally include conduct before and after the exclusion notice, whether fines, penalties, restitution, and other government debts have been paid or satisfactory payment arrangements made, and the individual’s overall circumstances.

Given the one-year penalty for a denial, a thorough first submission is worth considerably more than a fast one. A well-organized packet — cover letter, completed forms, and supporting documentation of license reinstatement, completed restitution, compliance training, and employment history, clearly labeled and indexed — makes the reviewer’s job easier and reduces the chance of a request for more information.

The complication nobody plans for: state exclusion lists

This is where providers most often get blindsided.

Federal reinstatement removes you from the LEIE. It does not remove you from any state Medicaid exclusion list. State exclusion authorities operate independently and do not lift their own exclusions on the basis of federal reinstatement.

If you were excluded at both levels, you must apply to each separately, under each jurisdiction’s own procedures, standards, and timelines. Some states require a showing of good cause. Some impose their own waiting periods. Some have criteria that differ materially from OIG’s.

The result is a scenario that surprises people every year: a provider is federally reinstated, returns to practice, and remains excluded by their state Medicaid program — with the resulting claims creating liability for both the provider and the employer. Before returning to work, verify your status on every applicable federal and state list, and get written confirmation.

What employers should take from this

If you are considering hiring someone with an exclusion history, the verification standard is straightforward: ask for the written OIG notice of reinstatement. Not an assurance that the term has ended. Not a clean LEIE search — remember that the LEIE reflects only current exclusions and does not show reinstatement dates or history.

Then check state lists independently for every state in which you operate, and document all of it. A candidate who genuinely believes their exclusion expired, but never applied for reinstatement, is still excluded — and the resulting penalties fall on the employer under the same “knew or should have known” standard that governs every other exclusion case.

Summary

• Reinstatement is never automatic and never retroactive
• Apply 90 days before your exclusion term ends — not after
• Indefinite 1128(b)(4) exclusions are tied to license status, not a date
• Statement and Authorization forms must be complete and notarized
• Expect 120 days or more for a decision
• A denial means waiting a full year to reapply
• State exclusions require separate applications
• Do not return to federally reimbursed work until you have written confirmation from every applicable list

Exclusion is designed to be temporary in most cases. But the exit is a process, not a date, and treating it as a date is how a five-year exclusion turns into a six-year one.