NPPES file of Aug 9, 2026

Marcin Jaremko, M.D.

Family Medicine Physician · Avon, CT

Marcin Jaremko, M.D. is a family medicine physician with a practice address in Avon, Connecticut, and NPI 1396943080, issued on Jul 5, 2007. Check the license (Connecticut 049559, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396943080
Name
Marcin Jaremko
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
049559 CT
53584-020 WI
Self-reported in NPPES; status is on the state search
Practice location
339 W Main St, Avon, CT 06001
Phone
(860) 696-2150
Enumerated
Jul 5, 2007
Record last updated
Jul 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(860) 695-2160
Medicare enrollment
Enrolled (PECOS I20110823000989); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 339 W Main St

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

  1. Catherine Black, CRNPFamily Nurse Practitioner1720579840
  2. Renee Dela ChevrotiereFamily Nurse Practitioner1497622179
  3. Spencer Erman, MDFamily Medicine Physician1144206699
  4. David Garry, PA-CMedical Physician Assistant1285718353
  5. Lisa Gronski, D.O.Internal Medicine Physician1265758577
  6. Kristin Ingram, DNPFamily Nurse Practitioner1932703410

Verify Marcin Jaremko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 049559
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

38% more Medicare Part D claims than the average family medicine physician in 2024

4,899 Medicare Part D claims for 778 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 153 claims were for opioids.

  1. Marcin Jaremko4,899
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium339 claims
  2. Losartan Potassium237 claims
  3. Amlodipine Besylate204 claims
  4. Levothyroxine Sodium204 claims
  5. Lisinopril189 claims
  6. Simvastatin185 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 85 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score88.1
  2. Costout of 100 · 30%54.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Hartford Healthcare Medical Group IncAvon, CT
  2. Hartford Healthcare Urgent Care Centers LLCAvon, CT
  3. Mclean FundSimsbury, CT

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

Marcin Jaremko among 958 family medicine physician records in Connecticut

Marcin Jaremko, M.D. is one of 958 family medicine physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.

  • NPI issued2007 · 43% of these records are older, 48% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1998 · median 2009 among the 611 with a school on file
  • Record last updated2016 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

15 family medicine physician records list a practice address in Avon

They are 15 of the 673 NPPES records with a practice address in Avon, and 958 family medicine physician records in Connecticut.

The 8 family medicine physician records with the nearest ZIP codes

  1. Todd Bickmore, M.D.Avon, CT 060011952315632
  2. Alina Dobrita, M.D.Avon, CT 060011194945063
  3. Spencer Erman, MDAvon, CT 060011144206699
  4. Lori Lerner, D.O.Avon, CT 060011861788648
  5. Fawzu Mohammadu, MDAvon, CT 060011235345430
  6. Khosro PourkavoosAvon, CT 060011710946892
  7. Shilpa Rajashekar, MDAvon, CT 060011912183187
  8. Anthony Roselli, MDAvon, CT 060011518970425

Common questions

What is Marcin Jaremko, M.D.'s NPI number?

Marcin Jaremko, M.D.'s National Provider Identifier (NPI) is 1396943080, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Marcin Jaremko, M.D. located?

The NPPES record lists a practice address at 339 W Main St, Avon, CT, 06001. Phone: (860) 696-2150. Providers update this record themselves, so call before visiting.

How can I verify Marcin Jaremko, M.D.'s license?

NPPES lists Connecticut license number 049559, 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 Marcin Jaremko, M.D. prescribe under Medicare Part D?

In 2024, Marcin Jaremko, M.D. had 4,899 Medicare Part D claims for 778 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Marcin Jaremko, M.D.'s MIPS final score?

The 2023 MIPS final score is 85 of 100, reported for the practice group. 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.