William Martin Carrera, M.D.
NPI 1679014013ActiveIndividual· Ophthalmology· Oakland, CA
Ophthalmology (M.D.) in Oakland, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2017). In 2024 Medicare paid $162,266 for 404 patients, and Part D covered 190 of their prescriptions, 51% of them generic. Genentech USA, Inc. was the largest of 4 companies reporting payments in 2025, $6,637 in all, mostly consulting fees.
Overview
| NPI | 1679014013 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 18, 2017 |
| Last updated in NPPES | Jul 16, 2024 |
| Certified by provider | Jul 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A158123 | CA |
| Ophthalmology, Retina Specialist | 207WX0107X | A158123 | 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 - Ophthalmology (CA); Practitioner - Ophthalmology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 404 |
|---|---|
| Services billed | 1,846 across 44 procedure codes |
| Paid by Medicare | $162,266 |
Part D prescriptions in 2024
| Prescriptions (claims) | 190 · 275 30-day fills |
|---|---|
| Patients | 76 |
| Total drug cost | $20,336 |
| Generic share | 51% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Ophthalmology |
Medical group
- East Bay Retina Consultants A Medical Group IncOakland, CA · 6 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$6,637 · 9 payments from 4 companies
- 2024$520.80 · 9 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $6,534 | 6 |
| Regeneron Pharmaceuticals, Inc. | $53.89 | 1 |
| Ani Pharmaceuticals, Inc. | $31.03 | 1 |
| Astellas Pharma US Inc | $17.81 | 1 |
What the 2025 payments were for
- Consulting Fee$5,655 · 1 payment
- Travel and Lodging$505.47 · 1 payment
- Food and Beverage$476.38 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 57 ophthalmologists in Oakland · All ophthalmologists in California