OIG vs. SAM Exclusion Screening: What’s the Difference and When to Check Each

OIG Exclusion List Overview

The OIG exclusion list—formally the List of Excluded Individuals and Entities (LEIE)—is maintained by the Department of Health and Human Services Office of Inspector General. It identifies individuals and organizations barred from participation in federal healthcare programs due to fraud, patient abuse, license actions, or other sanctionable conduct. Using excluded parties can trigger repayment obligations, civil monetary penalties, and jeopardize Medicare and Medicaid compliance.

Purpose and scope

The LEIE focuses on federal healthcare program exclusions. It applies to anyone who furnishes, orders, or prescribes items or services billable to programs such as Medicare and Medicaid, as well as to owners and managers with certain controlling interests. If a person or entity appears on the LEIE, federal healthcare programs generally will not pay for their services—directly or indirectly.

Who should check the LEIE

• Healthcare providers and suppliers that bill federal healthcare programs.
• Hospitals, health systems, and physician groups credentialing or privileging staff.
• Pharmacies, laboratories, DMEPOS suppliers, home health, behavioral health, and revenue cycle vendors supporting federally reimbursed care.

What the LEIE contains

The database includes names and aliases, unique identifiers (for example, NPIs when available), sanction types (mandatory or permissive exclusion), effective dates, and reinstatement status. You use these data points to verify identity and confirm whether a candidate, employee, medical staff member, or contractor is eligible to participate in federal programs.

SAM Exclusion List Overview

The SAM.gov Exclusions record, administered by the General Services Administration, supports governmentwide responsibility determinations. It captures federal contracting debarment, suspension, and other ineligibility actions affecting eligibility for federal contracts, subcontracts, grants, cooperative agreements, and certain loans or other assistance. For healthcare organizations that receive federal awards or partner with vendors paid with federal funds, SAM screening is a core control.

Purpose and scope

SAM exclusions arise under procurement (for example, FAR debarment) and nonprocurement rules (for example, 2 CFR Part 180), covering both federal grant suspension and debarment. An exclusion generally prevents agencies and pass-through entities from making awards to a listed party and restricts certain subawards and subcontracts.

Who should check SAM.gov Exclusions

• Healthcare entities seeking or holding federal contracts or subcontracts.
• Hospitals, universities, and research institutes receiving federal grants or cooperative agreements.
• Organizations paying vendors with federal award funds or acting as pass-through entities.

What SAM contains

SAM.gov Exclusions includes entity and individual names, unique identifiers such as the UEI, the excluding agency, action type (suspension, proposed debarment, debarment), and effective/termination dates. You use these details to determine award eligibility and to document compliance with federal contracting and grant requirements.

Key Differences Between OIG and SAM

• Primary focus: OIG targets federal healthcare program exclusions; SAM addresses governmentwide eligibility for federal awards, including federal contracting debarment and nonprocurement suspensions.
• Authority and administration: OIG is part of HHS; SAM is operated by GSA and populated by multiple federal agencies’ suspending and debarring officials.
• Compliance trigger: OIG screening is essential when you bill Medicare, Medicaid, or other federal healthcare programs; SAM screening is essential when you pursue or manage federal contracts, subcontracts, grants, or subawards.
• Financial impact: OIG noncompliance risks overpayments and civil monetary penalties tied to claims; SAM noncompliance risks ineligible awards, termination, and potential enforcement under federal award terms.
• When to use: Check OIG for anyone involved in delivering or supporting billable care; check SAM before awarding or receiving federal funds (and for vendors paid with those funds).
• Update cadence: The LEIE is updated monthly; SAM.gov Exclusions is updated as agencies post actions, with changes occurring as frequently as daily.

Compliance Requirements for Healthcare Organizations

To meet Medicare and Medicaid compliance expectations, build exclusion screening protocols that cover your full workforce and vendor ecosystem. At a minimum, you should screen employees, medical staff, volunteers in patient-facing roles, owners, managers, contractors, and relevant vendors against the OIG LEIE. Maintain documentation of screening decisions, match resolutions, and remediation steps.

If your organization receives federal contracts or grants—or uses federal award funds to pay vendors—you must also incorporate SAM.gov Exclusions checks. Screen at the time of award or engagement, prior to subawards or subcontracts, and on an ongoing basis consistent with federal and pass-through entity requirements. Many payers, state Medicaid agencies, and managed care contracts also require SAM screening as a condition of participation or payment.

Policy essentials

• Define who is screened (roles, owners, vendors, and affiliates) and why (billing eligibility, award eligibility).
• Specify sources (OIG LEIE and SAM.gov Exclusions) and related lists required by state or payer contracts.
• Set screening frequency, evidence requirements, and escalation steps for potential matches.
• Assign responsibilities across HR, credentialing, supply chain, compliance, and research administration.

Screening Procedures and Frequency

Before hire, appointment, or engagement

• Collect identifying information (full legal name, prior names, date of birth, NPI/EIN/UEI where applicable).
• Screen the OIG LEIE for all roles tied to federally reimbursed services.
• Screen SAM.gov Exclusions for roles, vendors, or partners connected to federal contracts, subcontracts, grants, or subawards.

Ongoing monitoring

• OIG LEIE: screen monthly to capture new federal healthcare program exclusions and reinstatements.
• SAM.gov: screen at onboarding and on a recurring cadence (for example, monthly for high-risk vendors and award recipients; at least quarterly for lower risk) aligned to award terms and agency guidance.
• Trigger-based checks after license actions, ownership changes, acquisitions, or adverse media.

Match resolution and documentation

• Use multiple identifiers to confirm or rule out matches; never rely on name-only results.
• If confirmed on the LEIE, remove from federally reimbursed functions and evaluate repayment and disclosure obligations.
• If confirmed on SAM, halt award actions or payments from federal funds and coordinate with your contracting/grants office.
• Preserve an audit trail: search results, confirmation steps, decisions, and remediation.

Technology and quality controls

• Automate recurring checks and alerts; normalize data (aliases, hyphenations, transpositions).
• Implement dual review for positive matches and periodic sampling of negatives to validate process integrity.

Risk Mitigation Strategies

• Risk-tier your population: apply more frequent screening to high-impact roles, vendors paid with federal funds, and research collaborators.
• Contractual safeguards: include disclosure obligations, right-to-terminate for exclusion, and cooperation clauses for remediation.
• Training and attestations: educate managers and staff on exclusion risks; obtain periodic attestations of eligibility.
• M&A and affiliations: incorporate OIG and SAM checks into diligence and post-close integration to prevent inherited liabilities.
• Payment controls: implement edits to prevent claims or disbursements involving excluded parties; hold payments pending match resolution.
• Central governance: maintain a single policy, shared tools, and consolidated reporting across HR, supply chain, compliance, and research.

Regulatory Updates and Impact

Exclusion screening expectations evolve as federal regulations, payer contracts, and state Medicaid policies change. For example, governmentwide grant rules and procurement standards periodically clarify responsibilities for pass-through entities, while OIG guidance continues to emphasize prompt detection and remediation of exclusion issues. The move to modern identifiers like the UEI also affects how you capture and match records for vendors and award recipients.

Monitor agency updates, payer bulletins, and state directives, and document when and how you adjust your processes. Time-stamped policy updates, governance committee approvals, and version-controlled procedures demonstrate that your program adapts to new requirements.

Conclusion

In short, the OIG LEIE safeguards federal healthcare program integrity, while SAM.gov Exclusions governs eligibility for federal awards. You check OIG whenever services touch Medicare or Medicaid; you check SAM whenever federal contracts, subcontracts, grants, or subawards are in play. Build integrated exclusion screening protocols, monitor routinely, resolve matches quickly, and document everything to protect your organization—and the public funds you manage.

FAQs

What is the primary purpose of the OIG exclusion list?

The OIG exclusion list identifies individuals and entities that are barred from participating in federal healthcare programs. Its purpose is to prevent payment for services furnished by ineligible parties and to uphold Medicare and Medicaid compliance.

When should organizations screen the SAM exclusion list?

Screen SAM.gov Exclusions when you seek, hold, or administer federal contracts, subcontracts, grants, or subawards—or when you pay vendors with federal award funds. Conduct checks before award or engagement and on a recurring schedule defined in your policy and applicable award terms.

How often are the OIG and SAM exclusion lists updated?

The OIG LEIE is updated monthly. SAM.gov Exclusions is updated as agencies post actions, so changes can occur throughout the month. A monthly monitoring cadence is common, with more frequent checks for higher-risk populations.

Can an entity be on both OIG and SAM exclusion lists simultaneously?

Yes. OIG and SAM operate under different authorities and purposes. An individual or entity can appear on both lists at the same time, which is why organizations involved in both federally reimbursed care and federal awards should screen against each source.