Michael W. Tsang, M.D.
NPI 1053335117ActiveIndividual· Internal Medicine, Cardiovascular Disease· Oakland, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Oakland, California, trained at Tufts University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $1,267,362 for 4,333 claims, against $253,413 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $215.34 in all, mostly food and beverage.
Overview
| NPI | 1053335117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | May 8, 2024 |
| Certified by provider | May 8, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A78793 | 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 | 1,355 |
|---|---|
| Services billed | 2,943 across 50 procedure codes |
| Paid by Medicare | $253,413 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,333 · 11,010 30-day fills |
|---|---|
| Patients | 609 |
| Total drug cost | $1,267,362 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
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
- Eden Medical CenterCastro Valley, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$215.34 · 3 payments from 2 companies
- 2024$2,736 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $169.34 | 1 |
| Baxter Healthcare | $46.00 | 2 |
What the 2025 payments were for
- Food and Beverage$215.34 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in Oakland
- 1023196722
- 1043438179
- 1225078579
- 1316976913
- 1437472073
- 1477710671
- 1639193709
- 1639599467
- 1730125980
- 1851407258
- 1962469841
- 1962582189
All 32 cardiologists in Oakland · All cardiologists in California