Keith L. Callahan, M.D.
NPI 1629063219ActiveIndividual· Family Medicine· Warwick, RI
Family Medicine (M.D.) in Warwick, Rhode Island, trained at Rush Medical College of Rush University (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $301,599 for 6,463 claims, against $27,963 paid for services in 2024. Exact Sciences Corporation was the largest of 7 companies reporting payments in 2025, $450.66 in all, mostly food and beverage.
Overview
| NPI | 1629063219 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 20, 2005 |
| Last updated in NPPES | Aug 14, 2026 |
| Certified by provider | Aug 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | MD12303 | 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 - Family Practice (RI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 127 |
|---|---|
| Services billed | 323 across 6 procedure codes |
| Paid by Medicare | $27,963 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,463 · 14,226 30-day fills |
|---|---|
| Patients | 392 |
| Total drug cost | $301,599 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Family Practice |
Medical group
- Keith L. Callahan M.D., P.C.Cranston, RI · 6 clinicians
Hospital affiliations
- Kent County Memorial HospitalWarwick, RI
- The Miriam HospitalProvidence, RI
- Women & Infants Hospital of Rhode IslandProvidence, RI
Other facilities
- Vna of Care New EnglandHome health agency · Warwick, RI
- Vna of Care New EnglandHospice · Warwick, RI
Industry payments (Open Payments)
- 2025$450.66 · 16 payments from 7 companies
- 2024$521.32 · 23 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $132.34 | 5 |
| Novo Nordisk Inc | $81.85 | 3 |
| Amgen Inc. | $67.23 | 1 |
| Verona Pharma, Inc. | $61.11 | 2 |
| Abbvie Inc. | $44.32 | 2 |
What the 2025 payments were for
- Food and Beverage$450.66 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Warwick
- 1043294630
- 1306307368
- 1528688983
- 1558324970
- 1629181268
- 1679567531
- 1760433817
- 1831180769
- 1881709616
- 1043950793
- 1174106918
- 1174525570
All 106 family medicine physicians in Warwick · All family medicine physicians in Rhode Island