Individual provider Active NPI

Joycelyn Sheri Williams Thomas, PH.D.

  • Clinical Psychologist
  • Longview, TX
National Provider Identifier
1255444188
Registry record updated Mar 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical PsychologistTaxonomy code 103TC0700X
License
36150 Issued in TX
Practice address
1000 N High St Unit 13
Longview, TX 75601-5105
Phone
(817) 607-3868
Fax
(855) 541-0383
NPI assigned
Aug 16, 2006
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 3, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Psychologist 103T00000X 36150 TX
Counseling Psychologist 103TC1900X 36150 TX
Clinical Psychologist 103TC0700X 36150 TX Primary
Forensic Psychologist 103TF0200X 36150 TX

Addresses

Primary practice location

1000 N High St Unit 13
Longview, TX 75601-5105

Mailing address

510 E Loop 281 Ste B-220
Longview, TX 75605-5077
Phone (817) 607-3868

Other identifiers 1

IdentifierTypeStateIssuer
11829119OtherTXCAQH

Other names 1

  • Dr. Joycelyn Sheri Williams Former name

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20150910000682 TX Practitioner - Clinical Psychologist 8426206301 Reassigns benefits to 1 organization
Practice locations: Longview, TX

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Philosophy

State licenses

LicenseStateTypeSpecialty
36150TXMDClinical Psychologist

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1155686400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772496000000",
    "number": "1255444188",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "510 E LOOP 281 STE B-220",
            "city": "LONGVIEW",
            "state": "TX",
            "postal_code": "756055077",
            "telephone_number": "817-607-3868",
            "fax_number": "855-541-0383"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 N HIGH ST UNIT 13",
            "city": "LONGVIEW",
            "state": "TX",
            "postal_code": "756015105",
            "telephone_number": "817-607-3868",
            "fax_number": "855-541-0383"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS THOMAS",
        "first_name": "JOYCELYN",
        "middle_name": "SHERI",
        "name_prefix": "Dr.",
        "credential": "PH.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-08-16",
        "last_updated": "2026-03-03",
        "certification_date": "2026-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "TX",
            "license": "36150",
            "primary": false
        },
        {
            "code": "103TC1900X",
            "taxonomy_group": "",
            "desc": "Psychologist, Counseling",
            "state": "TX",
            "license": "36150",
            "primary": false
        },
        {
            "code": "103TC0700X",
            "taxonomy_group": "",
            "desc": "Psychologist, Clinical",
            "state": "TX",
            "license": "36150",
            "primary": true
        },
        {
            "code": "103TF0200X",
            "taxonomy_group": "",
            "desc": "Psychologist, Forensic",
            "state": "TX",
            "license": "36150",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAQH",
            "identifier": "11829119",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JOYCELYN",
            "last_name": "WILLIAMS",
            "middle_name": "SHERI",
            "prefix": "DR.",
            "credential": "PHD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Longview, TX

Sources for this page

Verify at the official NPI Registry.