Doctor profile · Federal record

Dr. Karl Hartmann, MD

Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · East Hartford, CT

  • NPI 1437122314
  • Accepts Medicare
  • MIPS 90.8 / 100 · 2023
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
94 Connecticut Blvd
East Hartford, CT 061083013
(860) 528-1359

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
June 9, 2022
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #041740
Medicaid
CT #001417402

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1437122314. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
178
Distinct HCPCS
5
Medicare allowed
$24,627
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 83 82 $181
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 56 38 $83
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 16 13 $124
99239 Hospital discharge day management, more than 30 minutes 12 12 $120
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 11 11 $136

In context: peer comparison

Among 2 peers in this city , average services per provider: 42. This provider delivers 4.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
71
Patients
25
Total drug cost
$632
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 30 14 $334
Amlodipine Besylate Generic 28 11 $175
Metformin Hcl Generic 13 0 $123

Frequently asked questions

Auto-generated from federal data
What is Dr. Karl Hartmann's medical specialty?
Dr. Karl Hartmann practices Internal Medicine Physician in East Hartford, CT.
Where does Dr. Karl Hartmann practice?
Dr. Karl Hartmann practices at 94 Connecticut Blvd, East Hartford, CT 061083013. Office phone: 8605281359.
What is Dr. Karl Hartmann's NPI?
Dr. Karl Hartmann's National Provider Identifier (NPI) is 1437122314, issued by NPPES.
Does Dr. Karl Hartmann accept Medicare assignment?
Yes. Dr. Karl Hartmann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karl Hartmann commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.