Edward Y C Chan, M.D.
NPI 1033155213ActiveIndividual· Internal Medicine, Hematology & Oncology· San Francisco, CA
Internal Medicine, Hematology & Oncology (M.D.) in San Francisco, California, trained at University of California, San Francisco School of Medicine (class of 1974). Their prescriptions cost Medicare Part D more than their services did: $2,249,871 for 1,303 claims, against $33,571 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 17 companies reporting payments in 2025, $1,188 in all, mostly food and beverage.
Overview
| NPI | 1033155213 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2006 |
| Last updated in NPPES | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 00G307720 | CA |
| Internal Medicine | 207R00000X | 00G307720 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 107 |
|---|---|
| Services billed | 317 across 7 procedure codes |
| Paid by Medicare | $33,571 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,303 · 3,011 30-day fills |
|---|---|
| Patients | 201 |
| Total drug cost | $2,249,871 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of California, San Francisco School of Medicine |
|---|---|
| Graduation year | 1974 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Medical Oncology |
Medical group
- Chinese Hospital AssociationDaly City, CA · 39 clinicians
Hospital affiliations
- California Pacific Medical Center- Van Ness CampusSan Francisco, CA
- Chinese HospitalSan Francisco, CA
Industry payments (Open Payments)
- 2025$1,188 · 42 payments from 17 companies
- 2024$1,460 · 47 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $415.09 | 15 |
| Agios Pharmaceuticals, Inc. | $104.28 | 3 |
| Regeneron Healthcare Solutions, Inc. | $77.79 | 2 |
| Merck Sharp & Dohme LLC | $62.76 | 2 |
| Travere Therapeutics, Inc. | $62.28 | 2 |
What the 2025 payments were for
- Food and Beverage$1,095 · 41 payments
- Education$92.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in San Francisco
- 1043314354
- 1821255696
- 1548441660
- 1558431122
- 1821289794
- 1316198112
- 1518155357
- 1528287174
- 1063754448
- 1083869242
- 1518257625
- 1750315172
All Internal Medicine, Hematology & Oncology providers in California →