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

DR. MATTHEW MICHAEL WILLIAMS PH.D.
NPI 1962545491
Psychologist - Clinical in Killeen, TX

Active since February 15, 2007PECOS EnrolledAccepts Medicare Assignment
1711 E CENTRAL TEXAS EXPY STE 106B, KILLEEN, TX 76541(254) 781-2027(254) 781-2028 Get Directions Write a Review

NPPES record last updated: March 31, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 31, 2025, May 5, 2023, Dec 13, 2021 and 2 more (5 updates tracked since 2017).

About Dr. Matthew Michael Williams Ph.d. NPPES

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

DR. MATTHEW MICHAEL WILLIAMS PH.D. (NPI 1962545491) is an individual clinical provider in Killeen, Texas, licensed in Texas (36045) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2010).

NPPES Registry Identity

NPI1962545491
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MATTHEW MICHAEL WILLIAMSCredential: PH.D.
Location Address1711 E CENTRAL TEXAS EXPY STE 106BKilleen, TX 76541-9145
Mailing Address715 Cactus LnCopperas Cove, TX 76522-7686 · (254) 781-2027 · Fax (254) 781-2028
Phone(254) 781-2027
Fax(254) 781-2028
Sole ProprietorYes
Medical School CMSOtherGraduated 2010
Enumeration DateFebruary 15, 2007
Last NPPES UpdateMarch 31, 20255 updates tracked since enumeration
NPPES CertifiedMarch 31, 2025
✔ NPI 1962545491 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in TX · 36045
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.
1711 E CENTRAL TEXAS EXPY STE 106B, Killeen, TX 76541
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Matthew Michael Williams Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6507016458
PECOS Enrollment IDI20121030000493
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 76541 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.

MATTHEW WILLIAMS, PHD PLLC
Psychologist (Clinical)
1711 E CENTRAL TEXAS EXPY STE 106B
KILLEEN, TX 76541
Bell County (254) 781-2027

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 Matthew Williams's NPI number?

The NPI number for Matthew Williams is 1962545491. It was assigned to this individual provider in the NPPES registry on February 15, 2007.

Where is Matthew Williams located?

Matthew Williams practices at 1711 E Central Texas Expy Ste 106B, Killeen, TX 76541. The listed phone number is (254) 781-2027.

What is Matthew Williams's specialty?

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

Is Matthew Williams enrolled in Medicare?

Yes. Matthew Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Matthew Williams accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Matthew Williams 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 Matthew Williams was last updated on March 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.