Calvin C. Zhao, MD
NPI 1134700800ActiveIndividual· Urology· Stanford, CA
Urology (MD) in Stanford, California, licensed in CA, with an NPI issued in April 2021. Part D covered 121 prescriptions written in 2024, 93% of them generic. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $138.33 in all, mostly food and beverage.
Overview
| NPI | 1134700800 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 15, 2021 |
| Last updated in NPPES | Apr 28, 2025 |
| Certified by provider | Apr 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | A190964 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 121 · 154 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $8,014 |
| Generic share | 93% of claims |
Industry payments (Open Payments)
- 2025$138.33 · 2 payments from 2 companies
- 2024$188.59 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $110.07 | 1 |
| Coloplast Corp | $28.26 | 1 |
What the 2025 payments were for
- Food and Beverage$138.33 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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