Isaac K. Tsai, M.D.
NPI 1013909407ActiveIndividual· Internal Medicine, Cardiovascular Disease· Corona, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Corona, California, licensed in CA, with an NPI issued in August 2005. Part D covered 19 prescriptions written in 2024, 95% of them generic.
Overview
| NPI | 1013909407 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Aug 22, 2005 |
| Last updated in NPPES | Jul 8, 2007 |
| Reactivated | Apr 12, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A39031 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 19 · 43 30-day fills |
|---|---|
| Total drug cost | $220.84 |
| Generic share | 95% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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