Chengan Tony Chien, MD
NPI 1205578119ActiveIndividual· Family Medicine, Sports Medicine· San Jose, CA
Family Medicine, Sports Medicine (MD) in San Jose, California, licensed in CA, with an NPI issued in April 2022. Part D covered 490 prescriptions written in 2024, 80% of them generic.
Overview
| NPI | 1205578119 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 11, 2022 |
| Last updated in NPPES | Aug 17, 2026 |
| Certified by provider | Aug 17, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine, Sports Medicine Primary | 207QS0010X | A197716 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 490 · 897 30-day fills |
|---|---|
| Patients | 80 |
| Total drug cost | $61,754 |
| Generic share | 80% 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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