Lillian Tsai, OD
NPI 1841831062ActiveIndividual· Optometrist· San Gabriel, CA
Optometrist (OD) in San Gabriel, California, trained at Illinois College of Optometry at Chicago (class of 2019). Mostly services rather than prescriptions: Medicare paid $15,337 for 91 patients in 2024, with only 44 Part D claims. Bausch & Lomb Americas Inc. was the largest of 7 companies reporting payments in 2025, $2,314 in all, mostly speaking and faculty fees.
Overview
| NPI | 1841831062 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | OD |
| Sole proprietor | Yes |
| NPI issued | Sep 30, 2019 |
| Last updated in NPPES | Mar 9, 2023 |
| Certified by provider | Mar 9, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 34412TLG | CA |
| Optometrist | 152W00000X | 34412 | 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 - Optometry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 225 across 16 procedure codes |
| Paid by Medicare | $15,337 |
Part D prescriptions in 2024
| Prescriptions (claims) | 44 · 55 30-day fills |
|---|---|
| Patients | 24 |
| Total drug cost | $3,326 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | Illinois College of Optometry at Chicago |
|---|---|
| Graduation year | 2019 |
| Medicare specialty | Optometry |
Medical group
- South Pasadena Optometric Group IncSouth Pasadena, CA · 5 clinicians
Industry payments (Open Payments)
- 2025$2,314 · 13 payments from 7 companies
- 2024$282.12 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bausch & Lomb Americas Inc. | $1,942 | 4 |
| Glaukos Corporation | $180.94 | 1 |
| Visioneering Technologies, Inc. | $66.75 | 1 |
| Tarsus Pharmaceuticals, Inc. | $59.63 | 3 |
| Johnson & Johnson Vision Care, Inc. | $28.64 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1,800 · 2 payments
- Food and Beverage$513.59 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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