Michael M. Zhu, MD
NPI 1669544482ActiveIndividual· Internal Medicine, Interventional Cardiology· Stockton, CA
Internal Medicine, Interventional Cardiology (MD) with Permanente Medical Group Inc, practicing in Stockton, California. Their prescriptions cost Medicare Part D more than their services did: $35,225 for 581 claims, against $2,884 paid for services in 2024. Philips North America LLC was the largest of 2 companies reporting payments in 2025, $467.20 in all, mostly travel and lodging. Lists Kaiser Foundation Hospital Manteca and 1 other hospital as hospital affiliations.
Overview
| NPI | 1669544482 |
|---|---|
| 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, Interventional Cardiology Primary | 207RI0011X | A79751 | 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 - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 42 |
|---|---|
| Services billed | 51 across 17 procedure codes |
| Paid by Medicare | $2,884 |
Part D prescriptions in 2024
| Prescriptions (claims) | 581 · 1,643 30-day fills |
|---|---|
| Patients | 163 |
| Total drug cost | $35,225 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1988 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Hospital affiliations
- Kaiser Foundation Hospital MantecaManteca, CA
- St Joseph's Medical Center of StocktonStockton, CA
Industry payments (Open Payments)
- 2025$467.20 · 6 payments from 2 companies
- 2024$110.85 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Philips North America LLC | $446.95 | 5 |
| Biotronik Inc. | $20.25 | 1 |
What the 2025 payments were for
- Travel and Lodging$280.80 · 2 payments
- Food and Beverage$186.40 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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