Katherine Alice Masso, PMHNP
NPI 1508435553ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Webster, MA
Nurse Practitioner, Psych/Mental Health (PMHNP) with Umass Memorial Medical Group Inc, practicing in Webster, Massachusetts. 76 Medicare patients in 2024, $26,516 paid; nearly all of their 307 Part D prescriptions were generic (95%). Lists Umass Memorial Health - Harrington Hospital as a hospital affiliation.
Overview
| NPI | 1508435553 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP |
| Sole proprietor | No |
| NPI issued | Jun 23, 2021 |
| Last updated in NPPES | Jun 23, 2021 |
| Certified by provider | Jun 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | RN2268824 | 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 | 76 |
|---|---|
| Services billed | 665 across 7 procedure codes |
| Paid by Medicare | $26,516 |
Part D prescriptions in 2024
| Prescriptions (claims) | 307 · 309 30-day fills |
|---|---|
| Patients | 52 |
| Total drug cost | $9,342 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Umass Memorial Medical Group IncWorcester, MA · 2,516 clinicians
Hospital affiliation
- Umass Memorial Health - Harrington HospitalSouthbridge, 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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