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DR. MARY BETH E WILLIAMS PH.D., LCSW, CTS
NPI 1942399811
Social Worker - Clinical in Warrenton, VA

Active since October 11, 2006PECOS Enrolled
9 N 3RD ST, #14, WARRENTON, VA 20186(540) 341-7339(540) 341-7339 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Dr. Mary Beth E Williams Ph.d., Lcsw, Cts NPPES

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

DR. MARY BETH E WILLIAMS PH.D., LCSW, CTS (NPI 1942399811) is an individual clinical provider in Warrenton, Virginia, licensed in Virginia (0904000277) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1990).

NPPES Registry Identity

NPI1942399811
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDR. MARY BETH E WILLIAMSCredential: PH.D., LCSW, CTS
Location Address9 N 3RD ST, #14Warrenton, VA 20186-3404
Mailing Address9 N 3rd St, #14Warrenton, VA 20186-3404 · (540) 341-7339 · Fax (540) 341-7339
Phone(540) 341-7339
Fax(540) 341-7339
Sole ProprietorYes
Medical School CMSOtherGraduated 1990
Enumeration DateOctober 11, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1942399811 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in VA · 0904000277
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
Also ListedMarriage & Family TherapistTaxonomy 106H00000X · License 0904000277 (VA)

Other Identifiers 1

Other062644VA · Blue Cross/blue Shield

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. Mary Beth E Williams Ph.d., Lcsw, Cts is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1355417106
PECOS Enrollment IDI20080903000183
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
157 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20186 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
$0.00 typical visit price
range $56.19 – $170.30
Typical copayment $0.00 (range $14.04 – $42.57)
Most-billed visit code NA
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
Most-billed visit code 99213
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.

TOUCH OF GRACE
In Home Supportive Care
9 N 3RD ST, SUITE 103
WARRENTON, VA 20186
Fauquier County (540) 359-6422

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 Mary Beth Williams's NPI number?

The NPI number for Mary Beth Williams is 1942399811. It was assigned to this individual provider in the NPPES registry on October 11, 2006.

Where is Mary Beth Williams located?

Mary Beth Williams practices at 9 N 3rd St #14, Warrenton, VA 20186. The listed phone number is (540) 341-7339.

What is Mary Beth Williams's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Mary Beth Williams enrolled in Medicare?

Yes. Mary Beth Williams is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Beth Williams was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.