Sean Tsao, M.D.
NPI 1841550217ActiveIndividual· Ophthalmology· Irvine, CA
Ophthalmology (M.D.) in Irvine, California, trained at University of California, Irvine, California College of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $52,403 for 1,103 claims, against $9,522 paid for services in 2024. Astellas Pharma US Inc reported $169.73 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1841550217 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 20, 2012 |
| Last updated in NPPES | Dec 3, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A128498 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 15 |
|---|---|
| Services billed | 118 across 12 procedure codes |
| Paid by Medicare | $9,522 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,103 · 2,505 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $52,403 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Ophthalmology |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$169.73 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $169.73 | 2 |
What the 2025 payments were for
- Food and Beverage$169.73 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 ophthalmologists in Irvine · All ophthalmologists in California