Josh O. Wallsh, MD
NPI 1740634567ActiveIndividual· Ophthalmology· Torrance, CA
Ophthalmology (MD) with Marshall B Ketchum University and 1 other group, practicing in Torrance, California. In 2024 Medicare paid $1,930,141 for 757 patients, and Part D covered 2,160 of their prescriptions, 67% of them generic. Astellas Pharma US Inc was the largest of 7 companies reporting payments in 2025, $690.30 in all, mostly food and beverage. Lists Pih Health Good Samaritan Hospital as a hospital affiliation.
Overview
| NPI | 1740634567 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 18, 2016 |
| Last updated in NPPES | Oct 28, 2026 |
| Certified by provider | Oct 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A184249 | 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 | 757 |
|---|---|
| Services billed | 17,861 across 59 procedure codes |
| Paid by Medicare | $1,930,141 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,160 · 3,059 30-day fills |
|---|---|
| Patients | 465 |
| Total drug cost | $193,730 |
| Generic share | 67% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical groups
- Marshall B Ketchum UniversityAnaheim, CA · 57 clinicians
- Retina Macula InstituteTorrance, CA · 5 clinicians
Hospital affiliation
- Pih Health Good Samaritan HospitalLos Angeles, CA
Industry payments (Open Payments)
- 2025$690.30 · 20 payments from 7 companies
- 2024$877.72 · 31 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $270.06 | 9 |
| Regeneron Healthcare Solutions, Inc. | $156.66 | 2 |
| Bausch & Lomb Americas Inc. | $98.49 | 1 |
| Tarsus Pharmaceuticals, Inc. | $61.79 | 3 |
| Abbvie Inc. | $61.08 | 3 |
What the 2025 payments were for
- Food and Beverage$690.30 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 ophthalmologists in Torrance · All ophthalmologists in California