Teresa B. Whitley, M.D.
NPI 1760496764ActiveIndividual· Internal Medicine· Fairfield, CA
Internal Medicine (M.D.) with Northbay Physicians Surgery Center, LLC and 1 other group, practicing in Fairfield, California. Their prescriptions cost Medicare Part D more than their services did: $404,266 for 5,120 claims, against $115,194 paid for services in 2024. Lists Northbay Medical Center as a hospital affiliation.
Overview
| NPI | 1760496764 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 28, 2006 |
| Last updated in NPPES | Jul 31, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 8657381 | CA |
| General Acute Care Hospital | 282N00000X | A 65738 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 2,330 across 40 procedure codes |
| Paid by Medicare | $115,194 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,120 · 11,231 30-day fills |
|---|---|
| Patients | 410 |
| Total drug cost | $404,266 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Northbay Physicians Surgery Center, LLCFairfield, CA · 324 clinicians
- Northbay Health Medical FoundationFairfield, CA · 213 clinicians
Hospital affiliation
- Northbay Medical CenterFairfield, CA
Other facilities
- Angelcare Home Health Services, LLCHome health agency · Milpitas, CA
- Ascension Healthcare ServicesHome health agency · Campbell, CA
- Healthflex Home Health ServicesHome health agency · Oakland, CA
- Laurel Creek Health CenterNursing home · Fairfield, 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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All 65 internal medicine physicians in Fairfield · All internal medicine physicians in California