Mark M Williams, MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

G73670 Issued in CA

Practice address

8221 N Fresno St
Fresno, CA 93720-2041

Phone

(559) 222-2294

Fax

(888) 374-8684

NPI assigned

Jul 12, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 3

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": "1152662400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772064000000",
    "number": "1295760601",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "21C ORINDA WAY # 367",
            "city": "ORINDA",
            "state": "CA",
            "postal_code": "945632534",
            "telephone_number": "850-381-1010",
            "fax_number": "888-374-8684"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8221 N FRESNO ST",
            "city": "FRESNO",
            "state": "CA",
            "postal_code": "937202041",
            "telephone_number": "559-222-2294",
            "fax_number": "888-374-8684"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARK",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-12",
        "last_updated": "2026-02-26",
        "certification_date": "2026-02-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0005X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Sports Medicine",
            "state": "CA",
            "license": "G73670",
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "CA",
            "license": "G73670",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUE CROSS",
            "identifier": "18903",
            "state": "FL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "290994400",
            "state": "FL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "372895100",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lori Dee Williams, PH.D
• Lucille Kay Williams, PSYD
• Lucy Williams
• Malcolm Williams Jr.
• Margaret Carolyn Williams
• Michael Jason Williams
• Nancy Williams, LVN
• Patricia Marlene Williams
• Patti Ann Williams, MFTI
• Paul Williams

• Orthopaedic Surgery Physician in Fresno, CA
• Providers in Fresno, CA by specialty
• Orthopaedic Surgery Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 26, 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.