Leslie Ann Stefanowicz, NP
NPI 1639159783ActiveIndividual· Nurse Practitioner, Family· Brockton, MA
Nurse Practitioner, Family (NP) with Asthma and Allergy Physicians LLC and 1 other group, practicing in Brockton, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $762,637 for 1,192 claims, against $98,591 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 22 companies reporting payments in 2025, $7,319 in all, mostly food and beverage. Lists Southcoast Hospitals Group as a hospital affiliation.
Overview
| NPI | 1639159783 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Jan 17, 2006 |
| Last updated in NPPES | Nov 3, 2026 |
| Certified by provider | Nov 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 233927 | MA |
| Nurse Practitioner | 363L00000X | 233927 | 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); Practitioner - Nurse Practitioner (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 128 |
|---|---|
| Services billed | 3,764 across 20 procedure codes |
| Paid by Medicare | $98,591 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,192 · 1,778 30-day fills |
|---|---|
| Patients | 282 |
| Total drug cost | $762,637 |
| Generic share | 51% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Asthma and Allergy Physicians LLCBrockton, MA · 8 clinicians
- Greater Boston Allergy Asthma Sinus and Immunology Centers, P.C.Newton, MA · 8 clinicians
Hospital affiliation
- Southcoast Hospitals GroupFall River, MA
Industry payments (Open Payments)
- 2025$7,319 · 210 payments from 22 companies
- 2024$15,058 · 252 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $3,634 | 24 |
| Astrazeneca Pharmaceuticals LP | $1,164 | 61 |
| Glaxosmithkline, LLC. | $340.23 | 14 |
| Genzyme Corporation | $263.14 | 9 |
| Leo Pharma Inc. | $244.16 | 10 |
What the 2025 payments were for
- Food and Beverage$4,144 · 202 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,030 · 3 payments
- Consulting Fee$1,050 · 3 payments
- Education$95.66 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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