How do I check the Washington Medicaid exclusion list?

The Washington Medicaid exclusion list is published by the Washington State Health Care Authority (HCA). Screen each provider on your roster against it by NPI and name, confirm any match at the primary source, and document the check with its date. Fonteum mirrors the Washington list alongside the OIG LEIE, SAM.gov, and 16 other state lists so you can clear it in one pass with a signed attestation.

Who publishes the Washington Medicaid exclusion list?

Source: Washington State Health Care Authority (HCA). Fonteum mirrors that list as a source-traced screening aid and links back to the authority of record; the absence of a match means "nothing found in the list Fonteum currently holds," never a guarantee that none exists.

Is screening Washington enough on its own?

No. A provider excluded by Washington Medicaid may not appear on the federal OIG LEIE, and a provider your Washington roster shows as clean may be excluded by another state. A defensible screen covers the OIG LEIE, SAM.gov, and every applicable state Medicaid list — the "excluded-anywhere" approach — not a single jurisdiction.

How often should I re-screen Washington providers?

Monthly. The OIG recommends monthly screening against the LEIE, the penalty for employing an excluded provider accrues per item or service, and state lists update on their own schedules. Re-running the Washington screen monthly and keeping a dated record is the defensible cadence.

Can Fonteum screen a Washington roster for free?

Yes. Upload your roster and Fonteum runs a free same-day screen against the Washington Medicaid list, the OIG LEIE, SAM.gov, and every other state list it mirrors, returning a signed, hash-chained attestation PDF in which each match traces to its source file and snapshot date. Public data only; no PHI, no demo.

What does a Washington exclusion mean for payment?

An in-force exclusion means the program may not pay for items or services the excluded party furnishes, orders, or prescribes. Employing or contracting with an excluded individual can expose the organization to civil monetary penalties — up to $24,947 per item or service under Section 1128A of the Social Security Act — plus repayment. Confirm every match at the source before acting.

Exclusion screening · Washington

How to check Washington Medicaid exclusions

Screen every provider on your Washington roster against the Washington Medicaid exclusion list — published by the Washington State Health Care Authority (HCA) — plus the federal OIG LEIE and SAM.gov, and document each check with its date. Here is the process, the source, and a free way to clear every list at once.

Published June 19, 2026 · Last reviewed June 19, 2026 · Fonteum Research

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The source

The Washington Medicaid exclusion list, at the source

List: Washington HCA Provider Termination and Exclusion List
Authority: Washington State Health Care Authority (HCA)
Tier: Tier-1
Primary source: Washington State Health Care Authority →

Source: Washington State Health Care Authority (HCA). Fonteum mirrors this list as a screening aid; cross-check every match at the primary source before any adverse action.

The process

How to screen a Washington provider roster

Open the Washington Medicaid exclusion listThe list is published by the Washington State Health Care Authority (HCA). The primary source is at Washington State Health Care Authority. Always treat that page as the authority of record.
Match every provider by NPI, then by nameCheck each provider on your Washington roster against the list by NPI where the source publishes one, and by name where it does not. Confirm any hit against the primary list before any adverse action.
Screen the federal lists tooA Washington match is necessary but not sufficient. Screen the same roster against the OIG LEIE and SAM.gov, because a federal exclusion may not appear on a state list and vice versa.
Screen every other state your providers touchA provider excluded in Washington can relocate and bill elsewhere — and one excluded in another state can show up on your Washington roster clean. For a multi-state roster, screen all 17 state Medicaid lists Fonteum mirrors, not just Washington.
Document the screen and repeat monthlyKeep a dated record of which list you checked, the snapshot date, and any match. Re-run the Washington screen on a monthly cadence, aligned to how often the source republishes.

FAQ

Washington exclusion screening — common questions

How do I check the Washington Medicaid exclusion list?: The Washington Medicaid exclusion list is published by the Washington State Health Care Authority (HCA). Screen each provider on your roster against it by NPI and name, confirm any match at the primary source, and document the check with its date. Fonteum mirrors the Washington list alongside the OIG LEIE, SAM.gov, and 16 other state lists so you can clear it in one pass with a signed attestation.
Who publishes the Washington Medicaid exclusion list?: Source: Washington State Health Care Authority (HCA). Fonteum mirrors that list as a source-traced screening aid and links back to the authority of record; the absence of a match means “nothing found in the list Fonteum currently holds,” never a guarantee that none exists.
Is screening Washington enough on its own?: No. A provider excluded by Washington Medicaid may not appear on the federal OIG LEIE, and a provider your Washington roster shows as clean may be excluded by another state. A defensible screen covers the OIG LEIE, SAM.gov, and every applicable state Medicaid list — the “excluded-anywhere” approach — not a single jurisdiction.
How often should I re-screen Washington providers?: Monthly. The OIG recommends monthly screening against the LEIE, the penalty for employing an excluded provider accrues per item or service, and state lists update on their own schedules. Re-running the Washington screen monthly and keeping a dated record is the defensible cadence.
Can Fonteum screen a Washington roster for free?: Yes. Upload your roster and Fonteum runs a free same-day screen against the Washington Medicaid list, the OIG LEIE, SAM.gov, and every other state list it mirrors, returning a signed, hash-chained attestation PDF in which each match traces to its source file and snapshot date. Public data only; no PHI, no demo — start at pilot intake.
What does a Washington exclusion mean for payment?: An in-force exclusion means the program may not pay for items or services the excluded party furnishes, orders, or prescribes. Employing or contracting with an excluded individual can expose the organization to civil monetary penalties — up to $24,947 per item or service under Section 1128A of the Social Security Act — plus repayment (see OIG guidance). Confirm every match at the source before acting.

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Screen your Washington roster against every list — free.

Upload your provider roster and get a free same-day full-roster screen across OIG-LEIE + SAM + all 17 state Medicaid lists, plus a signed attestation PDF. No PHI, no demo. The pilot is published at $2,500–$5,000/mo with a 30-day no-penalty exit.

Get a free roster screen →or browse the state exclusion data →