Nadine Barbara Hanna, M.D.
NPI 1043244007ActiveIndividual· Obstetrics & Gynecology· Walnut Creek, CA
Obstetrics & Gynecology (M.D.) in Walnut Creek, California, trained at Medical College of Pennsylvania (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $49,795 for 564 claims, against $31,820 paid for services in 2024. Exeltis, USA Inc. was the largest of 8 companies reporting payments in 2025, $681.97 in all, mostly food and beverage.
Overview
| NPI | 1043244007 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2006 |
| Last updated in NPPES | Jan 7, 2025 |
| Certified by provider | Jan 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | A68399 | 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 - Obstetrics/Gynecology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 250 |
|---|---|
| Services billed | 436 across 22 procedure codes |
| Paid by Medicare | $31,820 |
Part D prescriptions in 2024
| Prescriptions (claims) | 564 · 1,353 30-day fills |
|---|---|
| Patients | 210 |
| Total drug cost | $49,795 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Medical College of Pennsylvania |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$681.97 · 36 payments from 8 companies
- 2024$271.76 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exeltis, USA Inc. | $202.44 | 5 |
| Biogen, Inc. | $154.93 | 6 |
| Mayne Pharma Commercial LLC | $137.30 | 17 |
| Exact Sciences Corporation | $48.94 | 2 |
| Millicent US Inc | $45.75 | 2 |
What the 2025 payments were for
- Food and Beverage$681.97 · 36 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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