Mackenzie Malcolm Gray, PA-C
NPI 1407479272ActiveIndividual· Physician Assistant, Surgical· Springfield, MA
Physician Assistant, Surgical (PA-C) with Mass General Brigham Medical Group Western Massachusetts Inc and 1 other group, practicing in Springfield, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $6,132 for 148 claims, against $3,306 paid for services in 2024. Solventum Corporation reported $103.72 in payments in 2025, mostly food and beverage. Lists Cooley Dickinson Hospital Inc,the and 1 other hospital as hospital affiliations.
Overview
| NPI | 1407479272 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | May 27, 2020 |
| Last updated in NPPES | Jun 23, 2021 |
| Certified by provider | Jun 23, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | PA7598 | 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 - Physician Assistant (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 57 across 25 procedure codes |
| Paid by Medicare | $3,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 148 · 197 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $6,132 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Mass General Brigham Medical Group Western Massachusetts IncNorthampton, MA · 291 clinicians
- Riverbend Medical Group IncAgawam, MA · 226 clinicians
Hospital affiliations
- Cooley Dickinson Hospital Inc,theNorthampton, MA
- Mercy Medical CtrSpringfield, MA
Industry payments (Open Payments)
- 2025$103.72 · 1 payment from 1 company
- 2024$129.52 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Solventum Corporation | $103.72 | 1 |
What the 2025 payments were for
- Food and Beverage$103.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 90 surgical physician assistants in Springfield · All surgical physician assistants in Massachusetts