Individual provider Active NPI

Joan Mary Leya, M.D.

  • Gynecology Physician
  • Evanston, IL
National Provider Identifier
1326037912
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gynecology PhysicianTaxonomy code 207VG0400X
Practice address
800 Austin St
Suite 310 West Tower
Evanston, IL 60202-3439
Phone
(847) 475-5188
Fax
(847) 475-8778
NPI assigned
Oct 17, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Reproductive Endocrinology Physician 207VE0102X IL
Gynecology Physician 207VG0400X IL Primary

Addresses

Primary practice location

800 Austin St
Suite 310 West Tower
Evanston, IL 60202-3439

Mailing address

800 Austin St
Suite 310 West Tower
Evanston, IL 60202-3439
Phone (847) 475-5188

Other names 1

  • Mrs. Joan M. Leya Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

NPI Registry JSON

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

{
    "created_epoch": "1129507200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1326037912",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "800 AUSTIN ST",
            "address_2": "SUITE 310 WEST TOWER",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602023439",
            "telephone_number": "847-475-5188",
            "fax_number": "847-475-8778"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 AUSTIN ST",
            "address_2": "SUITE 310 WEST TOWER",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602023439",
            "telephone_number": "847-475-5188",
            "fax_number": "847-475-8778"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEYA",
        "first_name": "JOAN",
        "middle_name": "MARY",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-10-17",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207VE0102X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Reproductive Endocrinology",
            "state": "IL",
            "license": null,
            "primary": false
        },
        {
            "code": "207VG0400X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Gynecology",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOAN",
            "last_name": "LEYA",
            "middle_name": "M.",
            "prefix": "MRS.",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Evanston, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.