Matthew Williams, OD

Primary specialty

OptometristTaxonomy code 152W00000X

License

046.012134 Issued in IL

Practice address

227 E Ontario St
Chicago, IL 60611-3385

Phone

(312) 643-2019

NPI assigned

Jul 24, 2026

Sex

Male

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)

Not enrolled

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

{
    "created_epoch": "1784851200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1275454134",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "711 W BROMPTON AVE APT 48",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606571884",
            "fax_number": "312-643-2040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "227 E ONTARIO ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113385",
            "telephone_number": "312-643-2019"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MATTHEW",
        "name_prefix": "Dr.",
        "credential": "OD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-07-24",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "IL",
            "license": "046.012134",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marial Williams
• Marissa Williams
• Mark Williams
• Mary Williams
• Maryanne Nyree Williams, PSY.D.
• Melba Mercedes Williams, APN
• Melissa Jean Williams, APRN, CNP
• Mercedes Williams
• Michael Williams, PHD, MA, NCC
• Michael Stefan Williams, DPM

• Optometrist in Chicago, IL
• Providers in Chicago, IL by specialty
• Optometrist in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 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.