NPPES file of Aug 9, 2026

Elzbieta Piekarz-Dyjak, MD

Family Medicine Physician · New Britain, CT

Elzbieta Piekarz-Dyjak, MD is a family medicine physician with a practice address in New Britain, Connecticut, and NPI 1598864217, issued on Sep 21, 2006. Check the license (Connecticut 046455, 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
1598864217
Name
Elzbieta Piekarz-Dyjak
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
046455 CT
017640 ME
Self-reported in NPPES; status is on the state search
Practice location
85 Lafayette Street, New Britain, CT 06051
Phone
(860) 224-3642
Enumerated
Sep 21, 2006
Record last updated
Oct 17, 2022
Fax
(860) 224-2760
Medicaid IDs
008004591 CT
004236346 CT
Medicare enrollment
Enrolled (PECOS I20100519000008); 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.
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Also registered at 85 Lafayette Street

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

  1. Nancy Dalrymple, APRNPediatric Nurse Practitioner1386892321
  2. Robert Dudley, MD, MEDPediatrics Physician1710983937
  3. Jennifer Dugre, LCSWClinical Social Worker1336552934
  4. Francisco Lopez, PHDClinical Psychologist1053751990
  5. Jamie Rosenthal, LCSWSocial Worker1205186467
  6. Kara Stromberg, RDRegistered Dietitian1699057836

Verify Elzbieta Piekarz-Dyjak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 046455
    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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3% more Medicare Part D claims than the average family medicine physician in 2024

3,638 Medicare Part D claims for 644 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 134 claims were for opioids.

  1. Elzbieta Piekarz-Dyjak3,638
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium166 claims
  2. Amlodipine Besylate130 claims
  3. Levothyroxine Sodium113 claims
  4. Metformin Hcl103 claims
  5. Losartan Potassium82 claims
  6. Ozempic81 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 one group practice

  1. Hartford Healthcare Medical Group IncSouthington, CT

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

Elzbieta Piekarz-Dyjak among 958 family medicine physician records in Connecticut

Elzbieta Piekarz-Dyjak, MD 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 2006, is newer than 7% of them.

  • NPI issued2006 · 7% of these records are older, 57% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2004 · median 2009 among the 611 with a school on file
  • Record last updated2022 · 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).

Family Medicine Physician providers in Connecticut

There are 958 family medicine physician records in Connecticut.

The 8 family medicine physician records with the nearest ZIP codes

  1. Nicole BlaisNew Britain, CT 060511750213245
  2. Ovanes Borgonos, M.D.New Britain, CT 060511952491219
  3. Pierre Estime, DONew Britain, CT 060511023089315
  4. Robin Spence, D.O.New Britain, CT 060511245410836
  5. Siddharth Vyas, MDNew Britain, CT 060511659007557
  6. Konrad Kotrady, MDNew Britain, CT 060531790893972
  7. Piper Lillard, D.O.Bolton, CT 060431104920065
  8. Drew Lynne, D.O.Manchester, CT 060421801236047

Common questions

What is Elzbieta Piekarz-Dyjak, MD's NPI number?

Elzbieta Piekarz-Dyjak, MD's National Provider Identifier (NPI) is 1598864217, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Elzbieta Piekarz-Dyjak, MD located?

The NPPES record lists a practice address at 85 Lafayette Street, New Britain, CT, 06051. Phone: (860) 224-3642. Providers update this record themselves, so call before visiting.

How can I verify Elzbieta Piekarz-Dyjak, MD's license?

NPPES lists Connecticut license number 046455, 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 Elzbieta Piekarz-Dyjak, MD prescribe under Medicare Part D?

In 2024, Elzbieta Piekarz-Dyjak, MD had 3,638 Medicare Part D claims for 644 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.