Steven A. Harrison, M.D.
NPI 1821023755ActiveIndividual· Ophthalmology, Retina Specialist· Walnut Creek, CA
Ophthalmology, Retina Specialist (M.D.) in Walnut Creek, California, trained at New York University School of Medicine (class of 1987). In 2024 Medicare paid $1,172,414 for 755 patients, and Part D covered 161 of their prescriptions, 49% of them generic. Genentech USA, Inc. was the largest of 2 companies reporting payments in 2025, $79.68 in all, mostly food and beverage.
Overview
| NPI | 1821023755 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 11, 2006 |
| Last updated in NPPES | May 2, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | G63736 | CA |
| Ophthalmology | 207W00000X | G63736 | 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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 755 |
|---|---|
| Services billed | 14,415 across 32 procedure codes |
| Paid by Medicare | $1,172,414 |
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 268 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $6,362 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Ophthalmology |
Medical group
- Steven A Harrison MD A Professional CorporationWalnut Creek, CA · 2 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$79.68 · 3 payments from 2 companies
- 2024$250.54 · 11 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genentech USA, Inc. | $48.42 | 2 |
| Astellas Pharma US Inc | $31.26 | 1 |
What the 2025 payments were for
- Food and Beverage$79.68 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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