Mary D. Warzynski, NP
NPI 1316909013ActiveIndividual· Nurse Practitioner· Chestnut Hill, MA
Nurse Practitioner (NP) with Atrius Health Inc, practicing in Chestnut Hill, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $197,171 for 1,990 claims, against $4,366 paid for services in 2024.
Overview
| NPI | 1316909013 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Apr 6, 2006 |
| Last updated in NPPES | Oct 21, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 200847 | MA |
| Nurse Practitioner, Adult Health | 363LA2200X | 200847 | 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 | 91 |
|---|---|
| Services billed | 359 across 62 procedure codes |
| Paid by Medicare | $4,366 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,990 · 3,666 30-day fills |
|---|---|
| Patients | 661 |
| Total drug cost | $197,171 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Atrius Health IncBraintree, MA · 1,222 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 nurse practitioners in Chestnut Hill · All nurse practitioners in Massachusetts