Kristin M. O'Neil-Callahan, M.D.
NPI 1215985445ActiveIndividual· Internal Medicine· Peabody, MA
Internal Medicine (M.D.) in Peabody, Massachusetts, trained at Georgetown University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $161,230 for 4,091 claims, against $82,586 paid for services in 2024.
Overview
| NPI | 1215985445 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 4, 2006 |
| Last updated in NPPES | Jun 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 214128 | 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 | 330 |
|---|---|
| Services billed | 1,314 across 35 procedure codes |
| Paid by Medicare | $82,586 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,091 · 10,158 30-day fills |
|---|---|
| Patients | 496 |
| Total drug cost | $161,230 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Georgetown University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Mass General Brigham Medical Group Northern Massachusetts IncDanvers, MA · 827 clinicians
Hospital affiliations
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Massachusetts General HospitalBoston, MA
- North Shore Medical Center -Salem, MA
- Northeast Hospital CorporationBeverly, MA
Other facilities
- Beth Israel Lahey Health at HomeHome health agency · Beverly, MA
- Mass General Brigham Home Care, IncHome health agency · Newton, MA
- Spaulding Rehabilitation HospitalInpatient rehabilitation facility · Charlestown, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 60 internal medicine physicians in Peabody · All internal medicine physicians in Massachusetts