James Andrew Williams, MD
NPI 1083355879ActiveIndividual· Emergency Medicine· Stockton, CA
Emergency Medicine (MD) with John T Mather Memorial Hospital and 3 other groups, practicing in Stockton, California. Part D covered 61 prescriptions written in 2024, 89% of them generic. Btg International Inc. reported $149.13 in payments in 2025, mostly food and beverage. Lists John T Mather Memorial Hospital of Port Jefferson and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1083355879 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 5, 2022 |
| Last updated in NPPES | Nov 13, 2025 |
| Certified by provider | Nov 13, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A198652 | CA |
| Emergency Medicine | 207P00000X | MD20843 | RI |
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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (CT); Practitioner - Emergency Medicine (NY); Practitioner - Emergency Medicine (RI) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 61 · 61 30-day fills |
|---|---|
| Patients | 43 |
| Total drug cost | $1,523 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- John T Mather Memorial HospitalPort Jefferson, NY · 175 clinicians
- Emergency Physicians of Connecticut PCSharon, CT · 30 clinicians
- Emergency Care Services of New England PCNorth Providence, RI · 21 clinicians
- Emergency Physician Associates of New England PCWakefield, RI · 20 clinicians
Hospital affiliations
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY
- Our Lady of Fatima HospitalNorth Providence, RI
- Roger Williams Medical CenterProvidence, RI
- South County Hospital IncWakefield, RI
Industry payments (Open Payments)
- 2025$149.13 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Btg International Inc. | $149.13 | 1 |
What the 2025 payments were for
- Food and Beverage$149.13 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 emergency medicine physicians in Stockton · All emergency medicine physicians in California