Katharine A. Berthiaume, CNP
NPI 1518694355ActiveIndividual· Nurse Practitioner, Primary Care· Westwood, MA
Nurse Practitioner, Primary Care (CNP) with Mass General Brigham Medical Group Suburban Massachusetts Inc and 1 other group, practicing in Westwood, Massachusetts. 266 Medicare patients in 2024, $36,893 paid; nearly all of their 767 Part D prescriptions were generic (90%). Lists Brigham and Women Faulkner Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1518694355 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | CNP |
| Sole proprietor | No |
| NPI issued | Aug 2, 2022 |
| Last updated in NPPES | Aug 2, 2022 |
| Certified by provider | Aug 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Primary Care Primary | 363LP2300X | RN2278918 | 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 | 266 |
|---|---|
| Services billed | 398 across 31 procedure codes |
| Paid by Medicare | $36,893 |
Part D prescriptions in 2024
| Prescriptions (claims) | 767 · 1,731 30-day fills |
|---|---|
| Patients | 287 |
| Total drug cost | $30,089 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Mass General Brigham Medical Group Suburban Massachusetts IncPembroke, MA · 602 clinicians
- Mass General Brigham Community Physicians IncWatertown, MA · 428 clinicians
Hospital affiliations
- Brigham and Women Faulkner HospitalJamaica Plain, MA
- Brigham and Women's HospitalBoston, MA
- Newton-Wellesley HospitalNewton, MA
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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