Lawrence James Williamson, M.D.
NPI 1508821273ActiveIndividual· Family Medicine· Windsor, CA
Family Medicine (M.D.) with Department of State Hospitals, practicing in Windsor, California. Part D covered 22 prescriptions written in 2024, 82% of them generic. Lists Coalinga Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1508821273 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | May 4, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A73495 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Practice (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 22 · 22 30-day fills |
|---|---|
| Total drug cost | $611.47 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | General Practice |
Medical group
- Department of State HospitalsNapa, CA · 270 clinicians
Hospital affiliation
- Coalinga Regional Medical CenterCoalinga, CA
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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