William M Gibson, PHD PSYCHOLOGIST

Primary specialty

Professional CounselorTaxonomy code 101YP2500X

License

MC60916349 Issued in WA

Practice address

14657 Sivertson Rd NE
Bainbridge Island, WA 98110-3051

Phone

(206) 465-9935

NPI assigned

Jul 12, 2019

Sex

Male

Sole proprietor

Yes

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

Enrolled in WA

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

Mental Health Counselor

Education

Other, 2006

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Philosophy

State licenses

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Lightheart Associates PS

  • Psychologist
  • Redmond, WA
  • NPI 1609221720

  Professional

  Medicare reassignment NPD
• Dr. Kathleen Worsley

  • Counseling Psychologist
  • Redmond, WA
  • NPI 1619484821
  NPD (past)

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

{
    "created_epoch": "1562889600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762819200000",
    "number": "1093367724",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14657 SIVERTSON RD NE",
            "city": "BAINBRIDGE ISLAND",
            "state": "WA",
            "postal_code": "981103051",
            "telephone_number": "206-465-9935"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14657 SIVERTSON RD NE",
            "city": "BAINBRIDGE ISLAND",
            "state": "WA",
            "postal_code": "981103051",
            "telephone_number": "206-465-9935"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "755 Winslow Way E Ste 307",
            "address_purpose": "LOCATION",
            "city": "Bainbridge Island",
            "state": "WA",
            "postal_code": "981102770",
            "country_code": "US",
            "telephone_number": "206-465-9925",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GIBSON",
        "first_name": "WILLIAM",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "PHD PSYCHOLOGIST",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-07-12",
        "last_updated": "2025-11-11",
        "certification_date": "2025-11-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YP2500X",
            "taxonomy_group": "",
            "desc": "Counselor, Professional",
            "state": "WA",
            "license": "MC60916349",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Shannon D. Gates, M.D.
• Kristi Gavigan, LMHC
• Kristin Marie Geddes, ARNP
• Kellee Gibbons, MA, APPLYING LMHCA
• Jill Giblin
• Lorraine Ann Glover, LICSW
• Wayne Russell Godfrey, MD
• Kim Goerlitz, MS, LMFT
• Andrea Jeanne Goldman, ANDREA GOLDMAN L.M.P
• Adriana Luz Gonzalez-Medina, DPT

• Professional Counselor in Bainbridge Island, WA
• Providers in Bainbridge Island, WA by specialty
• Professional Counselor in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 11, 2025; 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.