Marjorie H Mayer, MD

Primary specialty

Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X

Practice address

542 Lincoln Ave
Winnetka, IL 60093-2308

Phone

(847) 446-1829

Fax

(847) 446-1118

NPI assigned

Dec 19, 2005

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1134950400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1770569006",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "542 LINCOLN AVE",
            "city": "WINNETKA",
            "state": "IL",
            "postal_code": "600932308",
            "telephone_number": "847-446-1829",
            "fax_number": "847-446-1118"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "542 LINCOLN AVE",
            "city": "WINNETKA",
            "state": "IL",
            "postal_code": "600932308",
            "telephone_number": "847-446-1829",
            "fax_number": "847-446-1118"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MAYER",
        "first_name": "MARJORIE",
        "middle_name": "H",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-12-19",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Joshua F. Mark, LCSW
• Andrea C Marti, DPT
• Marvin J Pitluk & Associates LTD
• Oren P Matteson
• Colleen May, BCBA
• Madelyn Mays, LSW
• John Charles McArthur, DDS
• Patricia Marie McClintock
• Jane B. McCormack, PH.D.
• Sarah McGinn, PT, DPT

• Endocrinology, Diabetes & Metabolism Physician in Winnetka, IL
• Providers in Winnetka, IL by specialty
• Endocrinology, Diabetes & Metabolism Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.