Annie Chan, MD
NPI 1346420221ActiveIndividual· Ophthalmology· Palo Alto, CA
Ophthalmology (MD) in Palo Alto, California, trained at Tufts University School of Medicine (class of 2005). Part D covered 87 prescriptions written in 2024, 77% of them generic. Astellas Pharma US Inc reported $94.42 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1346420221 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 8, 2007 |
| Last updated in NPPES | Dec 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | A96575 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 87 · 178 30-day fills |
|---|---|
| Patients | 33 |
| Total drug cost | $6,607 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Ophthalmology |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2025$94.42 · 1 payment from 1 company
- 2024$104.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $94.42 | 1 |
What the 2025 payments were for
- Food and Beverage$94.42 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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