William Joseph Demeo, PH.D.

Primary specialty

Clinical Social WorkerTaxonomy code 1041C0700X

License

LC300040 Issued in DC

Practice address

5225 Connecticut Ave NW
Suite 311
Washington, DC 20015-1845

Phone

(202) 363-2550

Fax

(202) 363-2550

NPI assigned

Jun 6, 2006

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

Other names 1

• Dr. William J Demeo Other name

Medicare fee-for-service enrollment

Enrolled in DC

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Social Worker

Education

Other, 1973

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

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

{
    "created_epoch": "1149552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1235178807",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5225 CONNECTICUT AVE NW",
            "address_2": "SUITE 311",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200151845",
            "telephone_number": "202-363-2550",
            "fax_number": "202-363-2550"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5225 CONNECTICUT AVE NW",
            "address_2": "SUITE 311",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200151845",
            "telephone_number": "202-363-2550",
            "fax_number": "202-363-2550"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEMEO",
        "first_name": "WILLIAM",
        "middle_name": "JOSEPH",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-06",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "DC",
            "license": "LC300040",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "WILLIAM",
            "last_name": "DEMEO",
            "middle_name": "J",
            "prefix": "DR.",
            "credential": "PH.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Amsale Habtamu Demeke
• Asegedech Demeke
• Bossena Demel
• Guy Gaetan Demenou Kamga
• Judith Anne Dement, NP
• Colin Demeritt, DNP, MS, PMHNP-BC
• Sheena Demery, PSY.D.
• Saba Demesia
• Aida Mulugeta Demessie
• Rebeca Demeterco

• Clinical Social Worker in Washington, DC
• Providers in Washington, DC by specialty
• Clinical Social Worker in District of Columbia

• 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.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.