Joan Kay Clayton, PH.D.

Primary specialty

PsychologistTaxonomy code 103T00000X

License

33156 Issued in TX

Practice address

5524 Bee Caves Rd Ste H2
West Lake Hills, TX 78746-5246

Phone

(512) 710-0551

Fax

(512) 717-6337

NPI assigned

Aug 31, 2006

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in TX

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 Psychologist

Education

Other, 1980

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Three Oaks Counseling Group LLCGroup PAC ID 2163728692, 29 clinicians

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.

• Three Oaks Counseling Group, LLC

  • Psychiatry Physician
  • West Lake Hills, TX
  • NPI 1457753287

  Psychologist

  Medicare reassignment Care Compare group NPD
• Georgetown Psychological Services PLLC

  • Psychologist
  • Georgetown, TX
  • NPI 1942504949
  NPD (past)

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766966400000",
    "number": "1598877102",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3041",
            "city": "MARBLE FALLS",
            "state": "TX",
            "postal_code": "786543077",
            "telephone_number": "512-710-0551",
            "fax_number": "512-717-6337"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5524 BEE CAVES RD STE H2",
            "city": "WEST LAKE HILLS",
            "state": "TX",
            "postal_code": "787465246",
            "telephone_number": "512-710-0551",
            "fax_number": "512-717-6337"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLAYTON",
        "first_name": "JOAN",
        "middle_name": "KAY",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-08-31",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Psychologist",
            "state": "TX",
            "license": "33156",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "440531802",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Weston Vaughn Christen, PHARMD
• Christian Counseling Austin
• Christian Counseling Austin PLLC
• Jessica Cirullo, THERAPIST
• Clarity Imaging International, Inc
• Vicki Clifford, LCSW
• Caroline Clinch, OTD, OTR
• Maria Francisca Cloud, M.A., LMFT
• Tammy Clouston, LCSW, CTRS
• Erin Cloves

• Psychologist in West Lake Hills, TX
• Providers in West Lake Hills, TX by specialty
• Psychologist in Texas

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