Erin Sienkiewicz, MD
NPI 1073930392ActiveIndividual· Obstetrics & Gynecology· Concord, MA
Obstetrics & Gynecology (MD) in Concord, Massachusetts, trained at Pennsylvania State University College of Medicine (class of 2014). In 2024 Medicare paid $6,692 for 49 patients, and Part D covered 69 of their prescriptions, 83% of them generic. Mayne Pharma Commercial LLC was the largest of 4 companies reporting payments in 2025, $96.81 in all, mostly food and beverage.
Overview
| NPI | 1073930392 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 25, 2014 |
| Last updated in NPPES | Feb 23, 2026 |
| Certified by provider | Feb 23, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 260279 | MA |
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 (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 49 |
|---|---|
| Services billed | 90 across 22 procedure codes |
| Paid by Medicare | $6,692 |
Part D prescriptions in 2024
| Prescriptions (claims) | 69 · 140 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $8,343 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Pennsylvania State University College of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- A.F.A. Obstetrics and Gynecology, P.C.Concord, MA · 15 clinicians
Hospital affiliation
- Emerson Hospital -W Concord, MA
Industry payments (Open Payments)
- 2025$96.81 · 4 payments from 4 companies
- 2024$260.64 · 6 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mayne Pharma Commercial LLC | $34.31 | 1 |
| Astellas Pharma US Inc | $24.94 | 1 |
| Dexcom, Inc. | $22.61 | 1 |
| Hologic Sales and Service, LLC | $14.95 | 1 |
What the 2025 payments were for
- Food and Beverage$96.81 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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