Jadwiga Maja Stepczynski, M.D.
Internal Medicine Physician · West Haven, CT
Jadwiga Maja Stepczynski, M.D. is an internal medicine physician with a practice address in West Haven, Connecticut, and NPI 1942494562, issued on Aug 28, 2007. Check the license (Connecticut 045668, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Jadwiga Maja Stepczynski
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 045668 CT
Self-reported in NPPES; status is on the state search - Practice location
- 950 Campbell Ave, West Haven, CT 06516
- Phone
- (203) 932-5711
- Enumerated
- Aug 28, 2007
- Record last updated
- Apr 26, 2024
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 950 Campbell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abbott, LCSWSocial Worker1790734986
- Erica Abel, PH.D.Clinical Psychologist1982971222
- Audrey Abelleira, PHARMDPharmacist1831671577
- Mary Abraham, PHARMDPharmacist1386344950
- Linda Accordino, RN, MSNGerontology Nurse Practitioner1396853289
- Jenna Adamowicz, PH.D.Clinical Psychologist1356271266
Verify Jadwiga Maja Stepczynski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 045668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
203 Medicare Part D claims for 65 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium19 claims
- Azelastine Hcl18 claims
- Amlodipine Besylate16 claims
- Pantoprazole Sodium11 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.
Jadwiga Maja Stepczynski among 2,623 internal medicine physician records in Connecticut
Jadwiga Maja Stepczynski, 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2024 · 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).
84 internal medicine physician records list a practice address in West Haven
They are 84 of the 1,356 NPPES records with a practice address in West Haven, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in West Haven → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Horatiu Balas, M.D.West Haven, CT 065161720084320
- Christine Cheng, MDWest Haven, CT 065161598753980
- Mark Drabinski, M.D.West Haven, CT 065161811992902
- Benedict Fernando, M.D.West Haven, CT 065161932105624
- Glen Gechlik, MDWest Haven, CT 065161710972393
- Jurgen Holleck, M.D.West Haven, CT 065161811964257
- Avlin Imaeda, MDWest Haven, CT 065161851375612
- Laurence Knoll, MDWest Haven, CT 065161003886649
Common questions
What is Jadwiga Maja Stepczynski, M.D.'s NPI number?
Jadwiga Maja Stepczynski, M.D.'s National Provider Identifier (NPI) is 1942494562, issued on Aug 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jadwiga Maja Stepczynski, M.D. located?
The NPPES record lists a practice address at 950 Campbell Ave, West Haven, CT, 06516. Phone: (203) 932-5711. Providers update this record themselves, so call before visiting.
How can I verify Jadwiga Maja Stepczynski, M.D.'s license?
NPPES lists Connecticut license number 045668, 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 Jadwiga Maja Stepczynski, M.D. prescribe under Medicare Part D?
In 2024, Jadwiga Maja Stepczynski, M.D. had 203 Medicare Part D claims for 65 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.