Catherine Y. Tan, O.D.
NPI 1194855288ActiveIndividual· Optometrist· Encinitas, CA
Optometrist (O.D.) in Encinitas, California, trained at Pennsylvania College of Optometry (class of 2004). Mostly services rather than prescriptions: Medicare paid $3,516 for 25 patients in 2024, with only 27 Part D claims. Glaukos Corporation was the largest of 3 companies reporting payments in 2025, $424.71 in all, mostly food and beverage.
Overview
| NPI | 1194855288 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | O.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 7, 2007 |
| Last updated in NPPES | Oct 7, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Optometrist Primary | 152W00000X | 12696 | 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 | 25 |
|---|---|
| Services billed | 58 across 8 procedure codes |
| Paid by Medicare | $3,516 |
Part D prescriptions in 2024
| Prescriptions (claims) | 27 · 32 30-day fills |
|---|---|
| Total drug cost | $5,160 |
| Generic share | 44% of claims |
Education and affiliations
| Medical school | Pennsylvania College of Optometry |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Optometry |
Industry payments (Open Payments)
- 2025$424.71 · 6 payments from 3 companies
- 2024$300.66 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaukos Corporation | $245.25 | 2 |
| Bausch & Lomb Americas Inc. | $117.65 | 1 |
| Johnson & Johnson Vision Care, Inc. | $61.81 | 3 |
What the 2025 payments were for
- Food and Beverage$424.71 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 33 optometrists in Encinitas · All optometrists in California