Christine Chang, MD
NPI 1336602119ActiveIndividual· Hospitalist· Oakland, CA
Hospitalist (MD) with Sutter Bay Medical Foundation, practicing in Oakland, California. In 2024 Medicare paid $82,510 for 329 patients, and Part D covered 340 of their prescriptions, 82% of them generic. Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $51.42 in all, mostly food and beverage. Lists Alta Bates Summit Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1336602119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 9, 2019 |
| Last updated in NPPES | Jan 14, 2025 |
| Certified by provider | Jan 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | A179940 | CA |
| Internal Medicine | 207R00000X | A179940 | 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 - Hospitalist (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 329 |
|---|---|
| Services billed | 818 across 12 procedure codes |
| Paid by Medicare | $82,510 |
Part D prescriptions in 2024
| Prescriptions (claims) | 340 · 355 30-day fills |
|---|---|
| Patients | 128 |
| Total drug cost | $31,518 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliations
- Alta Bates Summit Medical CenterOakland, CA
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA
Industry payments (Open Payments)
- 2025$51.42 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $29.76 | 1 |
| Avanos Medical | $21.66 | 1 |
What the 2025 payments were for
- Food and Beverage$51.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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