Individual provider Active NPI

Leigh Therese Kowalski, MD

  • Obstetrics & Gynecology Physician
  • Hartford, CT
National Provider Identifier
1508445461
Registry record updated Jul 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
82418 Issued in CT
Practice address
100 Retreat Ave Ste 201
Hartford, CT 06106-2528
Phone
(860) 246-8568
Fax
(860) 493-7798
NPI assigned
Apr 6, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 11, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X 82418 CT Primary

Addresses

Primary practice location

100 Retreat Ave Ste 201
Hartford, CT 06106-2528

Mailing address

100 Retreat Ave Ste 201
Hartford, CT 06106-2528
Phone (860) 246-8568

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CT
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250813002192 CT Practitioner - Obstetrics/Gynecology 2668970153 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Obstetrics/Gynecology
Education
Tufts University School of Medicine, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Physicians for Women'S Health, LLCGroup PAC ID 3274430665, 319 clinicians

Practice addresses (Care Compare)

100 Retreat Ave
Hartford, CT 06106-2528

103 Newtown Rd
Candlewood Center for Womens Health
Danbury, CT 06810-4195
Phone (203) 730-8789

1084 Cromwell Ave
Suite a
Rocky Hill, CT 06067-3445
Phone (860) 246-8568

8 Two Mile Rd
Suite 204
Farmington, CT 06032-2559
Phone (860) 507-1550

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Physicians for Women'S Health LLC Obstetrics & Gynecology CurrentSince Sep 1, 2025 Accepting new patients

Locations

103 Newtown Rd
Danbury, CT 06810
Phone (203) 730-8789

8 Two Mile Rd
Ste 204
Farmington, CT 06032
Phone (860) 246-8568

100 Retreat Ave
Ste 201
Hartford, CT 06106
Phone (860) 246-8568

175 Capital Blvd
Fl 3
Rocky Hill, CT 06067

1084 Cromwell Ave
Ste A
Rocky Hill, CT 06067
Phone (860) 246-8568

Interoperability endpoints

  • Direct secure messaging: leigh.kowalski@xdr.hhchealthdirect.org
  • Direct secure messaging: leigh.kowalski.1@10170.direct.athenahealth.com

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1617667200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752192000000",
    "number": "1508445461",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 RETREAT AVE STE 201",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "061062528",
            "telephone_number": "860-246-8568",
            "fax_number": "860-493-7798"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 RETREAT AVE STE 201",
            "city": "HARTFORD",
            "state": "CT",
            "postal_code": "061062528",
            "telephone_number": "860-246-8568",
            "fax_number": "860-493-7798"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOWALSKI",
        "first_name": "LEIGH",
        "middle_name": "THERESE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-06",
        "last_updated": "2025-07-11",
        "certification_date": "2025-06-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "CT",
            "license": "82418",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Hartford, CT

Sources for this page

Verify at the official NPI Registry.