Karl T. Hartmann, MD
NPI 1437122314ActiveIndividual· Internal Medicine· East Hartford, CT
Internal Medicine (MD) in East Hartford, Connecticut, trained at Js Weill Medical College, Cornell University (class of 2000). Mostly services rather than prescriptions: Medicare paid $18,231 for 135 patients in 2024, with only 24 Part D claims.
Overview
| NPI | 1437122314 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 10, 2006 |
| Last updated in NPPES | Jun 9, 2022 |
| Certified by provider | Jun 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 041740 | CT |
| Hospitalist | 208M00000X | 041740 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 135 |
|---|---|
| Services billed | 164 across 7 procedure codes |
| Paid by Medicare | $18,231 |
Part D prescriptions in 2024
| Prescriptions (claims) | 24 · 36 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $2,178 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | Js Weill Medical College, Cornell University |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Hospitalist |
Medical group
- Middlesex HospitalMiddletown, CT · 234 clinicians
Hospital affiliation
- Middlesex HospitalMiddletown, CT
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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