Leigh Therese Kowalski, MD
Obstetrics & Gynecology Physician · Hartford, CT
Leigh Therese Kowalski, MD is an obstetrics & gynecology physician with a practice address in Hartford, Connecticut, and NPI 1508445461, issued on Apr 6, 2021. Check the license (Connecticut 82418, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Leigh Therese Kowalski
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 82418 CT
Self-reported in NPPES; status is on the state search - Practice location
- 100 Retreat Ave Ste 201, Hartford, CT 06106
- Phone
- (860) 246-8568
- Enumerated
- Apr 6, 2021
- Record last updated
- Jul 11, 2025
- Fax
- (860) 493-7798
- Medicare enrollment
- Enrolled (PECOS I20250813002192); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 707 in Connecticut → Look up another NPI →
Also registered at 100 Retreat Ave Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Garcia, MDObstetrics & Gynecology Physician1184244568
- Marlaine Jean-Miller, M.DObstetrics & Gynecology Physician1982994976
- Jessica Kiback, APRNWomen's Health Nurse Practitioner1417414905
- Pallvi Singh, DOObstetrics & Gynecology Physician1538656624
Verify Leigh Therese Kowalski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 82418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
52 Medicare Part D claims for 25 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Ibuprofen16 claims
- Oxycodone Hcl11 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
- Physicians For Women's Health, LLCHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leigh Therese Kowalski among 707 obstetrics & gynecology physician records in Connecticut
Leigh Therese Kowalski, MD is one of 707 obstetrics & gynecology 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 2021, is newer than 94% of them.
- NPI issued2021 · 94% of these records are older, 2% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2021 · median 2003 among the 488 with a school on file
- Record last updated2025 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 obstetrics & gynecology physician records list a practice address in Hartford
They are 86 of the 6,317 NPPES records with a practice address in Hartford, and 707 obstetrics & gynecology physician records in Connecticut.
All 707 in Connecticut → Every provider in Hartford → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Maria Briggs, M.D.Hartford, CT 061061194721084
- Yvonne Gomez-Carrion, M.D.Hartford, CT 061061508812967
- Pamela Griswold, MDHartford, CT 061061376646455
- Janice Hartnett, M.D.Hartford, CT 061061538182068
- Kerrie Henry, MDHartford, CT 061061740383785
- Lawrence Lazor, MDHartford, CT 061061831294768
- H Nusbaum, MD,PHDHartford, CT 061061760455380
- Edmund Olson, MDHartford, CT 061061568565505
Common questions
What is Leigh Therese Kowalski, MD's NPI number?
Leigh Therese Kowalski, MD's National Provider Identifier (NPI) is 1508445461, issued on Apr 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Leigh Therese Kowalski, MD located?
The NPPES record lists a practice address at 100 Retreat Ave Ste 201, Hartford, CT, 06106. Phone: (860) 246-8568. Providers update this record themselves, so call before visiting.
How can I verify Leigh Therese Kowalski, MD's license?
NPPES lists Connecticut license number 82418, 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 Leigh Therese Kowalski, MD prescribe under Medicare Part D?
In 2024, Leigh Therese Kowalski, MD had 52 Medicare Part D claims for 25 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.