NPPES file of Aug 9, 2026

Karolina Majk, M.D.

Internal Medicine Physician · Hartford, CT

Karolina Majk, M.D. is an internal medicine physician with a practice address in Hartford, Connecticut, and NPI 1487051777, issued on Dec 2, 2014. Check the license (Connecticut 54167, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487051777
Name
Karolina Majk
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
54167 CT
Self-reported in NPPES; status is on the state search
Practice location
80 Seymour St, Hartford, CT 06102
Phone
(860) 972-0549
Enumerated
Dec 2, 2014
Record last updated
Jul 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150716001294); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 80 Seymour St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gazang Abdulla, PA-CPhysician Assistant1396566956
  2. Evelyn Abernathy, M.D.Anatomic Pathology & Clinical Pathology Physician1982680195
  3. Rimanatou Adamou-DodoFamily Nurse Practitioner1588532980
  4. Hassana Addai-Boateng, MDInternal Medicine Physician1477226777
  5. Santosh Adhikari, MDHospitalist Physician1487331450
  6. Matthew AgsaludStudent in an Organized Health Care Education/Training Program1053025676

Verify Karolina Majk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 54167
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average internal medicine physician in 2024

117 Medicare Part D claims for 49 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 28 claims were for opioids.

  1. Karolina Majk117
  2. Specialty average3,176

Most prescribed

  1. Enoxaparin Sodium21 claims
  2. Hydromorphone Hcl13 claims

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.

Bills Medicare through 3 group practices

  1. Hartford Healthcare Medical Group Specialists PLLCHartford, CT
  2. Starling Physicians, PLLCWethersfield, CT
  3. The Charlotte Hungerford HospitalTorrington, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karolina Majk among 2,623 internal medicine physician records in Connecticut

Karolina Majk, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 72% of them.

  • NPI issued2014 · 72% of these records are older, 26% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2007 · median 2004 among the 1,646 with a school on file
  • Record last updated2015 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

169 internal medicine physician records list a practice address in Hartford

They are 169 of the 6,317 NPPES records with a practice address in Hartford, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mark Bell, M.D.Hartford, CT 061021942267265
  2. Robert Gionfriddo, D.OHartford, CT 061021831397942
  3. Ajay Kumar, MDHartford, CT 061021710942602
  4. Michael Lindberg, M.D.Hartford, CT 061021851494868
  5. Mitchell McClure, M.D.Hartford, CT 061021245442284
  6. Jacqueline Rheiner, D.O.Hartford, CT 061021821296153
  7. Jeffrey Robbins, MDHartford, CT 061021144227125
  8. Jamie Roche, M.D.Hartford, CT 061021013010347

Common questions

What is Karolina Majk, M.D.'s NPI number?

Karolina Majk, M.D.'s National Provider Identifier (NPI) is 1487051777, issued on Dec 2, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Karolina Majk, M.D. located?

The NPPES record lists a practice address at 80 Seymour St, Hartford, CT, 06102. Phone: (860) 972-0549. Providers update this record themselves, so call before visiting.

How can I verify Karolina Majk, M.D.'s license?

NPPES lists Connecticut license number 54167, 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 Karolina Majk, M.D. prescribe under Medicare Part D?

In 2024, Karolina Majk, M.D. had 117 Medicare Part D claims for 49 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.