Mary Anne Gaffney, MD
NPI 1508166851ActiveIndividual· Internal Medicine, Nephrology· Warwick, RI
Internal Medicine, Nephrology (MD) in Warwick, Rhode Island, trained at Warren Alpert Medical School of Brown University (class of 2023). In 2024 Medicare paid $54,528 for 171 patients, and Part D covered 414 of their prescriptions, 79% of them generic. Teva Pharmaceuticals USA, Inc. reported $53.96 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1508166851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 2, 2010 |
| Last updated in NPPES | Mar 5, 2026 |
| Certified by provider | Mar 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD12813 | RI |
| Internal Medicine | 207R00000X | MD12813 | RI |
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 - Nephrology (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 171 |
|---|---|
| Services billed | 561 across 20 procedure codes |
| Paid by Medicare | $54,528 |
Part D prescriptions in 2024
| Prescriptions (claims) | 414 · 814 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $66,502 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 2023 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- Lifespan Physician Group IncProvidence, RI · 1,173 clinicians
- Brown MedicineRiverside, RI · 217 clinicians
Hospital affiliations
- Kent County Memorial HospitalWarwick, RI
- Our Lady of Fatima HospitalNorth Providence, RI
- Rhode Island HospitalProvidence, RI
- The Miriam HospitalProvidence, RI
Other facilities
- Davita North Providence Renal CenterDialysis facility · North Providence, RI
Industry payments (Open Payments)
- 2025$53.96 · 3 payments from 1 company
- 2024$39.11 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Teva Pharmaceuticals USA, Inc. | $53.96 | 3 |
What the 2025 payments were for
- Food and Beverage$53.96 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Nephrology providers in Warwick
- 1831173301
- 1790975191
- 1710969027
- 1144616715
All Internal Medicine, Nephrology providers in Rhode Island →