Robin Stanton Mayfield, M.D.
NPI 1225098924ActiveIndividual· Internal Medicine· Brookline, MA
Internal Medicine (M.D.) in Brookline, Massachusetts, trained at Harvard Medical School (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $308,305 for 3,745 claims, against $1,140 paid for services in 2024. Hologic Sales and Service, LLC was the largest of 7 companies reporting payments in 2025, $235.72 in all, mostly food and beverage.
Overview
| NPI | 1225098924 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 25, 2006 |
| Last updated in NPPES | Mar 15, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 78290 | MA |
| Pediatrics | 208000000X | 78290 | MA |
| Hospitalist | 208M00000X | 78290 | 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 - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 15 |
|---|---|
| Services billed | 24 across 7 procedure codes |
| Paid by Medicare | $1,140 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,745 · 5,916 30-day fills |
|---|---|
| Patients | 274 |
| Total drug cost | $308,305 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 1990 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
Medical group
- Massachusetts Institute of TechnologyCambridge, MA · 54 clinicians
Hospital affiliation
- Boston Medical CenterBoston, MA
Industry payments (Open Payments)
- 2025$235.72 · 9 payments from 7 companies
- 2024$43.41 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $63.90 | 3 |
| Insulet Corporation | $43.19 | 1 |
| Viiv Healthcare Company | $32.29 | 1 |
| Alkermes, Inc. | $25.03 | 1 |
| Merck Sharp & Dohme LLC | $24.94 | 1 |
What the 2025 payments were for
- Food and Beverage$235.72 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 71 internal medicine physicians in Brookline · All internal medicine physicians in Massachusetts