Cassandra Linnea Williams, DO

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

34.018773 Issued in OH

Practice address

20000 Harvard Ave
Warrensville Heights, OH 44122-6805

Phone

(216) 491-6000

NPI assigned

Apr 9, 2022

Last updated

Jun 18, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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

{
    "created_epoch": "1649462400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1487396511",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "33300 CLEVELAND CLINIC BLVD",
            "city": "AVON",
            "state": "OH",
            "postal_code": "440111172"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "20000 HARVARD AVE",
            "city": "WARRENSVILLE HEIGHTS",
            "state": "OH",
            "postal_code": "441226805",
            "telephone_number": "216-491-6000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9500 Euclid Ave # Na-23",
            "address_purpose": "LOCATION",
            "city": "Cleveland",
            "state": "OH",
            "postal_code": "441956805",
            "country_code": "US",
            "telephone_number": "216-444-2200",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "18101 Lorain Ave",
            "address_purpose": "LOCATION",
            "city": "Cleveland",
            "state": "OH",
            "postal_code": "441115612",
            "country_code": "US",
            "telephone_number": "216-476-7000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "14601 Detroit Ave",
            "address_purpose": "LOCATION",
            "city": "Lakewood",
            "state": "OH",
            "postal_code": "441074205",
            "country_code": "US",
            "telephone_number": "216-237-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "33300 Cleveland Clinic Blvd",
            "address_purpose": "LOCATION",
            "city": "Avon",
            "state": "OH",
            "postal_code": "440111172",
            "country_code": "US",
            "telephone_number": "440-695-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "CASSANDRA",
        "middle_name": "LINNEA",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-09",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "OH",
            "license": "34.018773",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Pieter Emerson Wiemken, DO
• Nancy Wigle, APN
• Charles Christopher Wilhelm, ACNPC-AG, BSN, RN
• Joanne Wilkinson, CDCA
• Cameron Williams
• Elysia Shanaye Williams
• Nicole Michele Williams
• Sade Sommone Williams, NURSE PRACTITIONER
• Summer Williams
• Troy Gregory Williams

• Anesthesiology Physician in Warrensville Heights, OH
• Providers in Warrensville Heights, OH by specialty
• Anesthesiology Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.