Leanna Eleanor Patterson, FNP-BC, MSN, RN
NPI 1831708361ActiveIndividual· Nurse Practitioner, Family· Concord, MA
Nurse Practitioner, Family (FNP-BC, MSN, RN) with A.F.A. Obstetrics and Gynecology, P.C., practicing in Concord, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $5,010 for 59 claims, against $2,423 paid for services in 2024. Exeltis, USA Inc. was the largest of 5 companies reporting payments in 2025, $180.11 in all, mostly food and beverage. Lists Emerson Hospital - as a hospital affiliation.
Overview
| NPI | 1831708361 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-BC, MSN, RN |
| Sole proprietor | No |
| NPI issued | Jul 30, 2020 |
| Last updated in NPPES | Jun 11, 2026 |
| Certified by provider | Jun 11, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | RN2316381 | MA |
| Obstetrics & Gynecology | 207V00000X | RN2316381 | 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 - Nurse Practitioner (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 29 |
|---|---|
| Services billed | 39 across 10 procedure codes |
| Paid by Medicare | $2,423 |
Part D prescriptions in 2024
| Prescriptions (claims) | 59 · 100 30-day fills |
|---|---|
| Patients | 21 |
| Total drug cost | $5,010 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Nurse Practitioner |
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$180.11 · 8 payments from 5 companies
- 2024$106.53 · 5 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exeltis, USA Inc. | $48.66 | 2 |
| Organon LLC | $42.17 | 2 |
| Mayne Pharma Commercial LLC | $41.11 | 2 |
| Astellas Pharma US Inc | $24.95 | 1 |
| Biogen, Inc. | $23.22 | 1 |
What the 2025 payments were for
- Food and Beverage$180.11 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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