Alex Onishi
NPI 1710351622ActiveIndividual· Ophthalmology· Daly City, CA
Ophthalmology in Daly City, California, trained at Northwestern University Feinberg Medical School (class of 2019). In 2024 Medicare paid $72,576 for 386 patients, and Part D covered 542 of their prescriptions, 62% of them generic. Tarsus Pharmaceuticals, Inc. was the largest of 10 companies reporting payments in 2025, $948.60 in all, mostly food and beverage.
Overview
| NPI | 1710351622 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Nov 17, 2015 |
| Last updated in NPPES | Jul 28, 2023 |
| Certified by provider | Jul 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A181374 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 386 |
|---|---|
| Services billed | 906 across 38 procedure codes |
| Paid by Medicare | $72,576 |
Part D prescriptions in 2024
| Prescriptions (claims) | 542 · 926 30-day fills |
|---|---|
| Patients | 226 |
| Total drug cost | $41,129 |
| Generic share | 62% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Ophthalmology |
Medical group
- E Joseph Nadji MD A Medical CorporationSanta Monica, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$948.60 · 32 payments from 10 companies
- 2024$566.06 · 17 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tarsus Pharmaceuticals, Inc. | $398.18 | 10 |
| Alcon Vision LLC | $326.15 | 11 |
| Dompe US, Inc. | $54.45 | 2 |
| Bausch & Lomb Americas Inc. | $35.01 | 2 |
| Harrow Eye, LLC | $32.32 | 2 |
What the 2025 payments were for
- Food and Beverage$948.60 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 ophthalmologists in Daly City · All ophthalmologists in California