Diana W. Zhao, MD
NPI 1295199768ActiveIndividual· Internal Medicine· Newport Beach, CA
Internal Medicine (MD) in Newport Beach, California, trained at Medical College of Wisconsin (class of 2016). Part D covered 497 prescriptions written in 2024, 43% of them generic. Novo Nordisk Inc was the largest of 7 companies reporting payments in 2025, $751.86 in all, mostly food and beverage.
Overview
| NPI | 1295199768 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 11, 2016 |
| Last updated in NPPES | Feb 14, 2024 |
| Certified by provider | Feb 14, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A150485 | 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 - Endocrinology (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 497 · 1,081 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $256,739 |
| Generic share | 43% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Endocrinology |
Medical group
- David Ahn MD IncNewport Beach, CA · 4 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$751.86 · 21 payments from 7 companies
- 2024$984.88 · 34 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $389.46 | 9 |
| Lilly USA, LLC | $170.00 | 4 |
| Insulet Corporation | $69.18 | 3 |
| Tandem Diabetes Care, Inc. | $43.00 | 2 |
| Ascensia Diabetes Care US Inc. | $33.96 | 1 |
What the 2025 payments were for
- Food and Beverage$751.86 · 21 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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