1. Home
  2. Directory
  3. Texas
  4. Longview
  5. Psychologist
  6. NPI Profile

DR. JOYCELYN SHERI WILLIAMS THOMAS PH.D.
NPI 1255444188
Psychologist - Clinical in Longview, TX

Active since August 16, 2006PECOS Enrolled
1000 N HIGH ST UNIT 13, LONGVIEW, TX 75601(817) 607-3868(855) 541-0383 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Mar 3, 2026, Jun 19, 2025, Feb 17, 2022 and 2 more (5 updates tracked since 2018).

About Dr. Joycelyn Sheri Williams Thomas Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOYCELYN SHERI WILLIAMS THOMAS PH.D. (NPI 1255444188) is an individual clinical provider in Longview, Texas, licensed in Texas (36150) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1255444188
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameDR. JOYCELYN SHERI WILLIAMS THOMASCredential: PH.D.
Location Address1000 N HIGH ST UNIT 13Longview, TX 75601-5105
Mailing Address510 E Loop 281 Ste B-220Longview, TX 75605-5077 · (817) 607-3868 · Fax (855) 541-0383
Phone(817) 607-3868
Fax(855) 541-0383
Sole ProprietorYes
Enumeration DateAugust 16, 2006
Last NPPES UpdateMarch 3, 20265 updates tracked since enumeration
NPPES CertifiedMarch 3, 2026
✔ NPI 1255444188 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in TX · 36150
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedPsychologistTaxonomy 103T00000X · License 36150 (TX)
Also ListedPsychologist · CounselingTaxonomy 103TC1900X · License 36150 (TX)
Also ListedPsychologist · ForensicTaxonomy 103TF0200X · License 36150 (TX)
1000 N HIGH ST UNIT 13, Longview, TX 75601
Open in Google Maps ↗

Other Names 1

Former Name (1)Dr. Joycelyn Sheri Williams Phd

Other Identifiers 1

Other11829119TX · Caqh

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joycelyn Sheri Williams Thomas Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.88 typical visit price
range $54.84 – $166.88
Typical copayment $41.72 (range $13.71 – $41.72)
Most-billed visit code 99205
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SPIRITUAL AND BEHAVIORAL HEALTH CONSULTANTS, LLC
Psychologist (Clinical)
1000 N HIGH ST UNIT 13
LONGVIEW, TX 75601
Gregg County (817) 607-3868

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joycelyn Williams Thomas's NPI number?

The NPI number for Joycelyn Williams Thomas is 1255444188. It was assigned to this individual provider in the NPPES registry on August 16, 2006. The provider is also known as Dr. Joycelyn Sheri Williams Phd.

Where is Joycelyn Williams Thomas located?

Joycelyn Williams Thomas practices at 1000 N High St Unit 13, Longview, TX 75601. The listed phone number is (817) 607-3868.

What is Joycelyn Williams Thomas's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Joycelyn Williams Thomas enrolled in Medicare?

Yes. Joycelyn Williams Thomas is registered in the Medicare PECOS enrollment system.

What insurance does Joycelyn Williams Thomas accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Joycelyn Williams Thomas as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Joycelyn Williams Thomas was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.