Thomas Daniel Erskine, M.D.
NPI 1194732339ActiveIndividual· Internal Medicine· Vacaville, CA
Internal Medicine (M.D.) in Vacaville, California, trained at University of Southern California Keck School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $567,401 for 6,868 claims, against $42,432 paid for services in 2024.
Overview
| NPI | 1194732339 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 1, 2006 |
| Last updated in NPPES | Feb 21, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A63845 | CA |
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 - Internal Medicine (ID) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 321 |
|---|---|
| Services billed | 723 across 12 procedure codes |
| Paid by Medicare | $42,432 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,868 · 17,094 30-day fills |
|---|---|
| Patients | 662 |
| Total drug cost | $567,401 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
Medical group
- St Lukes Clinic-Treasure Valley LLCMeridian, ID · 1,173 clinicians
Hospital affiliations
- Saint Alphonsus Regional Medical CenterBoise, ID
- St Luke's Nampa Medical CenterNampa, ID
- St Luke's Regional Medical CenterBoise, ID
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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