Ao Zhang, MD, PHD
NPI 1285139139ActiveIndividual· Urology· Providence, RI
Urology (MD, PHD) with Mskcc Surgery Group, practicing in Providence, Rhode Island. Part D covered 25 prescriptions written in 2024, 100% of them generic. Olympus Corporation of the Americas was the largest of 2 companies reporting payments in 2025, $684.79 in all, mostly travel and lodging.
Overview
| NPI | 1285139139 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | Yes |
| NPI issued | Mar 23, 2018 |
| Last updated in NPPES | Sep 9, 2026 |
| Certified by provider | Sep 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Urology Primary | 208800000X | MD21475 | RI |
| Urology | 208800000X | 333527 | NY |
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 (NY) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 25 · 27 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $57.43 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Urology |
Medical group
- Mskcc Surgery GroupNew York, NY · 369 clinicians
Industry payments (Open Payments)
- 2025$684.79 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Olympus Corporation of the Americas | $534.87 | 9 |
| Baxter Healthcare | $149.92 | 1 |
What the 2025 payments were for
- Travel and Lodging$509.85 · 6 payments
- Food and Beverage$174.94 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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