Siamak Marzbani, M.D.
NPI 1528169307ActiveIndividual· Obstetrics & Gynecology· Smithfield, NC
Obstetrics & Gynecology (M.D.) with Triangle Premier Womens Health PA, practicing in Smithfield, North Carolina. In 2024 Medicare paid $22,688 for 115 patients, and Part D covered 368 of their prescriptions, 87% of them generic. Mayne Pharma Commercial LLC was the largest of 13 companies reporting payments in 2025, $549.01 in all, mostly food and beverage. Lists Johnston Health as a hospital affiliation.
Overview
| NPI | 1528169307 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 26, 2006 |
| Last updated in NPPES | Apr 5, 2021 |
| Certified by provider | Apr 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 38172 | NC |
| Specialist | 174400000X | 38172 | NC |
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 - Obstetrics/Gynecology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 115 |
|---|---|
| Services billed | 380 across 44 procedure codes |
| Paid by Medicare | $22,688 |
Part D prescriptions in 2024
| Prescriptions (claims) | 368 · 527 30-day fills |
|---|---|
| Patients | 95 |
| Total drug cost | $14,798 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- Triangle Premier Womens Health PASmithfield, NC · 4 clinicians
Hospital affiliation
- Johnston HealthSmithfield, NC
Industry payments (Open Payments)
- 2025$549.01 · 28 payments from 13 companies
- 2024$2,694 · 48 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $134.15 | 7 |
| Sumitomo Pharma America, Inc. | $67.09 | 3 |
| Astellas Pharma US Inc | $59.20 | 3 |
| Organon LLC | $54.86 | 3 |
| Lilly USA, LLC | $52.51 | 3 |
What the 2025 payments were for
- Food and Beverage$549.01 · 28 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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