Allison Marie Souza, NP
NPI 1851947931ActiveIndividual· Nurse Practitioner, Family· Lowell, MA
Nurse Practitioner, Family (NP) with Merrimack Valley Medical Associates PC, practicing in Lowell, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $31,372 for 443 claims, against $2,691 paid for services in 2024. Abbvie Inc. was the largest of 9 companies reporting payments in 2025, $543.49 in all, mostly food and beverage. Lists Holy Family Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1851947931 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Aug 14, 2019 |
| Last updated in NPPES | Oct 30, 2020 |
| Certified by provider | Oct 30, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | RN2295137 | MA |
| Nurse Practitioner, Primary Care | 363LP2300X | RN2295137 | 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 | 28 |
|---|---|
| Services billed | 56 across 13 procedure codes |
| Paid by Medicare | $2,691 |
Part D prescriptions in 2024
| Prescriptions (claims) | 443 · 960 30-day fills |
|---|---|
| Patients | 172 |
| Total drug cost | $31,372 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Merrimack Valley Medical Associates PCMethuen, MA · 4 clinicians
Hospital affiliations
- Holy Family HospitalMethuen, MA
- Merrimack Health Lawrence HospitalLawrence, MA
- Parkland Medical CenterDerry, NH
Industry payments (Open Payments)
- 2025$543.49 · 37 payments from 9 companies
- 2024$838.07 · 55 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $366.59 | 28 |
| Novo Nordisk Inc | $35.41 | 2 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $29.28 | 1 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $22.47 | 1 |
| Lilly USA, LLC | $22.34 | 1 |
What the 2025 payments were for
- Food and Beverage$543.49 · 37 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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