Subhransu Kumar Ray, M.D., PH.D.
NPI 1578597878ActiveIndividual· Ophthalmology, Retina Specialist· Walnut Creek, CA
Ophthalmology, Retina Specialist (M.D., PH.D.) in Walnut Creek, California, trained at Albert Einstein College of Medicine of Yeshiva University (class of 1996). In 2024 Medicare paid $2,656,386 for 1,133 patients, and Part D covered 257 of their prescriptions, 56% of them generic. Ani Pharmaceuticals, Inc. was the largest of 8 companies reporting payments in 2025, $889.13 in all, mostly food and beverage.
Overview
| NPI | 1578597878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Apr 29, 2021 |
| Certified by provider | Apr 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology, Retina Specialist Primary | 207WX0107X | G86936 | CA |
| Ophthalmology | 207W00000X | G86936 | 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 | 1,133 |
|---|---|
| Services billed | 25,146 across 47 procedure codes |
| Paid by Medicare | $2,656,386 |
Part D prescriptions in 2024
| Prescriptions (claims) | 257 · 430 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $42,490 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | Albert Einstein College of Medicine of Yeshiva University |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Ophthalmology |
Medical group
- Bay Area Retina AssociatesCastro Valley, CA · 8 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$889.13 · 32 payments from 8 companies
- 2024$3,431 · 32 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ani Pharmaceuticals, Inc. | $201.03 | 9 |
| Alcon Vision LLC | $147.53 | 2 |
| Apellis Pharmaceuticals, Inc. | $140.22 | 6 |
| Genentech USA, Inc. | $140.15 | 5 |
| Mallinckrodt Hospital Products Inc. | $99.00 | 4 |
What the 2025 payments were for
- Food and Beverage$889.13 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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