Casey Callahan, MD
NPI 1225657919ActiveIndividual· Family Medicine· Somerville, MA
Family Medicine (MD) in Somerville, Massachusetts, trained at Jefferson Medical College of Thomas Jefferson University (class of 2020). Their prescriptions cost Medicare Part D more than their services did: $69,549 for 598 claims, against $3,644 paid for services in 2024.
Overview
| NPI | 1225657919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 13, 2020 |
| Last updated in NPPES | Aug 18, 2026 |
| Certified by provider | Aug 18, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 1015482 | 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 - Family Practice (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 44 |
|---|---|
| Services billed | 62 across 8 procedure codes |
| Paid by Medicare | $3,644 |
Part D prescriptions in 2024
| Prescriptions (claims) | 598 · 1,121 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $69,549 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Cambridge Public Health CommissionEverett, MA · 656 clinicians
Hospital affiliation
- Cambridge Health AllianceCambridge, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Somerville
- 1265669014
- 1437257227
- 1588611735
- 1104893155
- 1003854399
- 1013398999
- 1144272659
- 1215907092
- 1255669925
- 1366433666
- 1487144689
- 1487828489
All 33 family medicine physicians in Somerville · All family medicine physicians in Massachusetts