Marcy G. Southwell, PA C
NPI 1306882881ActiveIndividual· Physician Assistant, Medical· Concord, NH
Physician Assistant, Medical (PA C) with Concord Hospital Inc, practicing in Concord, New Hampshire. Their prescriptions cost Medicare Part D more than their services did: $1,062,903 for 856 claims, against $21,239 paid for services in 2024. Phathom Pharmaceuticals, Inc. reported $6.10 in payments in 2025, mostly food and beverage. Lists Concord Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1306882881 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA C |
| Sole proprietor | No |
| NPI issued | Jun 21, 2006 |
| Last updated in NPPES | Dec 14, 2020 |
| Certified by provider | Dec 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | 0391P | NH |
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 - Physician Assistant (NH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 262 |
|---|---|
| Services billed | 433 across 14 procedure codes |
| Paid by Medicare | $21,239 |
Part D prescriptions in 2024
| Prescriptions (claims) | 856 · 1,337 30-day fills |
|---|---|
| Patients | 145 |
| Total drug cost | $1,062,903 |
| Generic share | 77% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Concord Hospital IncConcord, NH · 567 clinicians
Hospital affiliations
- Concord HospitalConcord, NH
- Concord Hospital- LaconiaLaconia, NH
Industry payments (Open Payments)
- 2025$6.10 · 1 payment from 1 company
- 2024$57.70 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $6.10 | 1 |
What the 2025 payments were for
- Food and Beverage$6.10 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 35 physician assistants in Concord · All physician assistants in New Hampshire