Michael Lin Zhang, M.D.
NPI 1275920977ActiveIndividual· Urology· Stockton, CA
Urology (M.D.) with Touro University Medical Group, practicing in Stockton, California. Their prescriptions cost Medicare Part D more than their services did: $652,485 for 2,440 claims, against $53,958 paid for services in 2024. Janssen Biotech, Inc. was the largest of 13 companies reporting payments in 2025, $407.08 in all, mostly food and beverage. Lists Mark Twain Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1275920977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 20, 2015 |
| Last updated in NPPES | Jun 5, 2023 |
| Certified by provider | Jun 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | A168082 | 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 - Urology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 187 |
|---|---|
| Services billed | 518 across 64 procedure codes |
| Paid by Medicare | $53,958 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,440 · 4,795 30-day fills |
|---|---|
| Patients | 648 |
| Total drug cost | $652,485 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Urology |
| Telehealth | Offers telehealth |
Medical group
- Touro University Medical GroupStockton, CA · 23 clinicians
Hospital affiliations
- Mark Twain Medical CenterSan Andreas, CA
- St Joseph's Medical Center of StocktonStockton, CA
Industry payments (Open Payments)
- 2025$407.08 · 17 payments from 13 companies
- 2024$537.35 · 19 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $97.15 | 3 |
| Cook Medical LLC | $50.28 | 2 |
| Convatec Inc. | $41.36 | 1 |
| Teleflex LLC | $38.63 | 2 |
| Ambu Inc. | $25.14 | 1 |
What the 2025 payments were for
- Food and Beverage$407.08 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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