Michelle M. Chang-Cheng, MD
NPI 1689746406ActiveIndividual· Internal Medicine· Davis, CA
Internal Medicine (MD) with Permanente Medical Group Inc, practicing in Davis, California. Part D covered 4,175 prescriptions written in 2024, 91% of them generic. Genzyme Corporation reported $152.86 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1689746406 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 15, 2006 |
| Last updated in NPPES | Jan 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A54715 | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 4,175 · 10,040 30-day fills |
|---|---|
| Patients | 422 |
| Total drug cost | $161,044 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2024$152.86 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $152.86 | 1 |
What the 2024 payments were for
- Food and Beverage$152.86 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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