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LEIGH THERESE KOWALSKI MD
NPI 1508445461
Obstetrics & Gynecology in Hartford, CT

Active since April 06, 2021PECOS EnrolledAccepts Medicare Assignment
100 RETREAT AVE STE 201, HARTFORD, CT 06106(860) 246-8568(860) 493-7798 Get Directions Write a Review

NPPES record last updated: July 11, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 11, 2025, Apr 6, 2021 (2 updates tracked since 2021).

About Leigh Therese Kowalski Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LEIGH THERESE KOWALSKI MD (NPI 1508445461) is an individual obstetrics & gynecology provider in Hartford, Connecticut, licensed in Connecticut (82418) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and is a graduate of Tufts University School Of Medicine (2021).

NPPES Registry Identity

NPI1508445461
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameLEIGH THERESE KOWALSKICredential: MD
Location Address100 RETREAT AVE STE 201Hartford, CT 06106-2528
Mailing Address100 Retreat Ave Ste 201Hartford, CT 06106-2528 · (860) 246-8568 · Fax (860) 493-7798
Phone(860) 246-8568
Fax(860) 493-7798
Sole ProprietorNo
Medical School CMSTufts University School Of MedicineGraduated 2021
Enumeration DateApril 6, 2021
Last NPPES UpdateJuly 11, 20252 updates tracked since enumeration
NPPES CertifiedJune 27, 2025
✔ NPI 1508445461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CT · 82418
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
100 RETREAT AVE STE 201, Hartford, CT 06106
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leigh Therese Kowalski Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2668970153
PECOS Enrollment IDI20250813002192
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Leigh Kowalski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Physicians For Women's Health LLC
7.2 mi
Obstetrics & Gynecology
175 CAPITAL BLVD STE 300
Rocky Hill, CT 06067
  • Reassigned Medicare billing, Connecticut enrollment
  • 371 clinicians in this Medicare group
NPI 1801826680 (860) 678-3400

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06106 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ASHLEY GARCIA MD
Obstetrics & Gynecology
100 RETREAT AVE STE 201
HARTFORD, CT 06106
Capitol Planning Region (860) 246-8568
JESSICA KIBACK APRN
Nurse Practitioner (Women's Health)
100 RETREAT AVE STE 201
HARTFORD, CT 06106
Capitol Planning Region (860) 246-8568
PALLVI KAUR SINGH DO
Obstetrics & Gynecology
100 RETREAT AVE STE 201
HARTFORD, CT 06106
Capitol Planning Region (860) 246-8567
MARLAINE JEAN-MILLER M.D
Obstetrics & Gynecology
100 RETREAT AVE STE 201
HARTFORD, CT 06106
Capitol Planning Region (860) 246-8568

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Leigh Kowalski's NPI number?

The NPI number for Leigh Kowalski is 1508445461. It was assigned to this individual provider in the NPPES registry on April 6, 2021.

Where is Leigh Kowalski located?

Leigh Kowalski practices at 100 Retreat Ave Ste 201, Hartford, CT 06106. The listed phone number is (860) 246-8568.

What is Leigh Kowalski's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Leigh Kowalski enrolled in Medicare?

Yes. Leigh Kowalski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Leigh Kowalski's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leigh Kowalski reassigns Medicare benefits to Physicians For Women's Health LLC (Rocky Hill, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Leigh Kowalski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Leigh Kowalski accept?

Health plans from Anthem Blue Cross and Blue Shield list Leigh Kowalski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Leigh Kowalski was last updated on July 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.