Angela Lai Chan, MD
NPI 1205909512ActiveIndividual· Internal Medicine· Alameda, CA
Internal Medicine (MD) in Alameda, California, trained at Hahnemann University College of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $122,392 for 3,683 claims, against $2,040 paid for services in 2024.
Overview
| NPI | 1205909512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 16, 2006 |
| Last updated in NPPES | Jan 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A63762 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 184 across 7 procedure codes |
| Paid by Medicare | $2,040 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,683 · 9,677 30-day fills |
|---|---|
| Patients | 461 |
| Total drug cost | $122,392 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Hahnemann University College of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliation
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 internal medicine physicians in Alameda · All internal medicine physicians in California