Masumi George Asahi, DO
NPI 1962963769ActiveIndividual· Ophthalmology· Orange, CA
Ophthalmology (DO) with Retina Macula Institute and 1 other group, practicing in Orange, California. Their prescriptions cost Medicare Part D more than their services did: $56,840 for 374 claims, against $11,860 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 7 companies reporting payments in 2025, $755.00 in all, mostly food and beverage. Lists Pih Health Good Samaritan Hospital as a hospital affiliation.
Overview
| NPI | 1962963769 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | Yes |
| NPI issued | Mar 26, 2019 |
| Last updated in NPPES | Oct 9, 2023 |
| Certified by provider | May 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 20A20765 | 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 | 82 |
|---|---|
| Services billed | 112 across 22 procedure codes |
| Paid by Medicare | $11,860 |
Part D prescriptions in 2024
| Prescriptions (claims) | 374 · 572 30-day fills |
|---|---|
| Patients | 123 |
| Total drug cost | $56,840 |
| Generic share | 51% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Ophthalmology |
Medical groups
- Retina Macula InstituteTorrance, CA · 5 clinicians
- Serve the People, Inc.Santa Ana, CA · 5 clinicians
Hospital affiliation
- Pih Health Good Samaritan HospitalLos Angeles, CA
Industry payments (Open Payments)
- 2025$755.00 · 18 payments from 7 companies
- 2024$1,337 · 19 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $188.19 | 4 |
| Abbvie Inc. | $187.74 | 4 |
| Astellas Pharma US Inc | $157.36 | 6 |
| Astellas Pharma Global Development | $117.28 | 1 |
| Merz Pharmaceuticals, LLC | $45.91 | 1 |
What the 2025 payments were for
- Food and Beverage$755.00 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 51 ophthalmologists in Orange · All ophthalmologists in California