Karl T. Hartmann, MD
Internal Medicine Physician · East Hartford, CT
Karl T. Hartmann, MD is an internal medicine physician with a practice address in East Hartford, Connecticut, and NPI 1437122314, issued on Feb 10, 2006. Check the license (Connecticut 041740, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Karl T. Hartmann
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 041740 CT
Self-reported in NPPES; status is on the state search - Practice location
- 94 Connecticut Blvd, East Hartford, CT 06108
- Phone
- (860) 528-1359
- Enumerated
- Feb 10, 2006
- Record last updated
- Jun 9, 2022
- Medicaid ID
- 001417402 CT
- Medicare enrollment
- Enrolled (PECOS I20100122000027); accepts Medicare assignment
- Medical or professional school
- Js Weill Medical College, Cornell University, 2000
- Entity
- Type 1 · individual
Also registered at 94 Connecticut Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Courtney Ackley, LCSWClinical Social Worker1518340553
- Robert Ballough, P.A.Medical Physician Assistant1851551972
- Natesha Bestman, APRNFamily Nurse Practitioner1992220958
- Albert Beuscher, DMDDentist1356606842
- Elizabeth BoigGeneral Practice Dentistry1396151445
- Christina Bonnet, CNMAdvanced Practice Midwife1245803519
Verify Karl T. Hartmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 041740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
24 Medicare Part D claims for 12 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Middlesex HospitalMiddletown, CT · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
13 internal medicine physician records list a practice address in East Hartford
They are 13 of the 976 NPPES records with a practice address in East Hartford, and 2,623 internal medicine physician records in Connecticut.
All 13 in East Hartford → All 2,623 in Connecticut → Every provider in East Hartford →
Other internal medicine physician records in Connecticut
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Racha Abi Melhem, MDDerby, CT1902471352
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Lilyan AbrahamFarmington, CT1447693254
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Kenneth Abriola, MDGlastonbury, CT1083693022
- Florentino Abueg, MDSouthbury, CT1649372558
- Nila Aburto, MDStamford, CT1396325718
Common questions
What is Karl T. Hartmann, MD's NPI number?
Karl T. Hartmann, MD's National Provider Identifier (NPI) is 1437122314, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karl T. Hartmann, MD located?
The NPPES record lists a practice address at 94 Connecticut Blvd, East Hartford, CT, 06108. Phone: (860) 528-1359. Providers update this record themselves, so call before visiting.
How can I verify Karl T. Hartmann, MD's license?
NPPES lists Connecticut license number 041740, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karl T. Hartmann, MD prescribe under Medicare Part D?
In 2024, Karl T. Hartmann, MD had 24 Medicare Part D claims for 12 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Karl T. Hartmann, MD's MIPS final score?
The 2023 MIPS final score is 97.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.