Anita Chang, MD
NPI 1013233535ActiveIndividual· Internal Medicine· Oakland, CA
Internal Medicine (MD) in Oakland, California, trained at University of Pittsburgh School of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $519,571 for 2,942 claims, against $209.25 paid for services in 2024. Coopersurgical, Inc. reported $17.16 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1013233535 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 8, 2010 |
| Last updated in NPPES | Oct 10, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A125147 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 21 |
|---|---|
| Services billed | 21 across 1 procedure code |
| Paid by Medicare | $209.25 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,942 · 7,030 30-day fills |
|---|---|
| Patients | 307 |
| Total drug cost | $519,571 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Internal Medicine |
Medical group
- Asian Health ServicesOakland, CA · 94 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
- Eden Medical CenterCastro Valley, CA
Other facilities
- Asian Network Pacific Home Care, IncHome health agency · Oakland, CA
- Centerwell Asian American Home HealthHome health agency · Alameda, CA
Industry payments (Open Payments)
- 2025$17.16 · 1 payment from 1 company
- 2024$26.98 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Coopersurgical, Inc. | $17.16 | 1 |
What the 2025 payments were for
- Food and Beverage$17.16 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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