Marilyn Beth Williams, MD

Primary specialty

Addiction Medicine (Family Medicine) PhysicianTaxonomy code 207QA0401X

License

4301033262 Issued in MI

Practice address

12851 E Grand River Ave
Brighton Hospital
Brighton, MI 48116-9969

Phone

(810) 225-2552

Fax

(810) 227-2270

NPI assigned

May 25, 2006

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

Other identifiers 1

Other names 1

• Marilyn Beth Gerstacker Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1148515200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1508812231",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12851 E GRAND RIVER AVE",
            "address_2": "BRIGHTON HOSPITAL",
            "city": "BRIGHTON",
            "state": "MI",
            "postal_code": "481169969",
            "telephone_number": "810-225-2552",
            "fax_number": "810-227-2270"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12851 E GRAND RIVER AVE",
            "address_2": "BRIGHTON HOSPITAL",
            "city": "BRIGHTON",
            "state": "MI",
            "postal_code": "481169969",
            "telephone_number": "810-225-2552",
            "fax_number": "810-227-2270"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARILYN",
        "middle_name": "BETH",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-25",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "MI",
            "license": "4301033262",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "010H26253",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARILYN",
            "last_name": "GERSTACKER",
            "middle_name": "BETH",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Tina Wiedyk
• Bryan David Wilkinson
• William P. Horal, DDS, P.C.
• Jala S Williams
• Lisa Williams
• Shelby Williams
• Willowbrook Rehabilitation Services, LLC
• Latonya Wilson, LLMSW
• Tara L Wilson, DDS
• Makayla Rose Wiltse

• Addiction Medicine (Family Medicine) Physician in Brighton, MI
• Providers in Brighton, MI by specialty
• Addiction Medicine (Family Medicine) Physician in Michigan

• 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.