William James Ritchie, M.D.
NPI 1184627564ActiveIndividual· Anesthesiology· Kirkland, WA
Anesthesiology (M.D.) with Matrix Anesthesia, Ps, practicing in Kirkland, Washington. Medicare paid $13,467 for services to 70 patients in 2024. Lists Evergreenhealth Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1184627564 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2005 |
| Last updated in NPPES | Nov 26, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | MD60636225 | WA |
| Anesthesiology | 207L00000X | 2003-0470 | NM |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (NM); Practitioner - Anesthesiology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 70 |
|---|---|
| Services billed | 81 across 36 procedure codes |
| Paid by Medicare | $13,467 |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- Matrix Anesthesia, PsBellevue, WA · 88 clinicians
Hospital affiliations
- Evergreenhealth Medical CenterKirkland, WA
- Evergreenhealth MonroeMonroe, WA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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