KATHERINE M WILLIAMS LCSW
NPI 1083007702
Social Worker - Clinical in Arlington, VA

Q: What is Katherine Williams's NPI number?

The NPI number for Katherine Williams is 1083007702. It was assigned to this individual provider in the NPPES registry on March 5, 2015.

Q: What is Katherine Williams's specialty?

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

Active since March 05, 2015PECOS Enrolled

1005 N GLEBE RD STE 525, ARLINGTON, VA 22201(888) 354-3654(253) 254-5911 Get Directions Write a Review

NPPES record last updated: May 12, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 12, 2026, May 6, 2026, Nov 27, 2019 (3 updates tracked since 2019).

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About Katherine M Williams Lcsw NPPES

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

KATHERINE M WILLIAMS LCSW (NPI 1083007702) is an individual clinical provider in Arlington, Virginia, licensed in Virginia (0904020154) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Jose.

NPPES Registry Identity

NPI1083007702

Entity TypeIndividualFemale

Primary Taxonomy1041C0700X

Provider Legal NameKATHERINE M WILLIAMSCredential: LCSW

Location Address1005 N GLEBE RD STE 525Arlington, VA 22201-5792

Mailing Address1005 N Glebe Rd Ste 525Arlington, VA 22201-5792 · (804) 207-6737 · Fax (804) 447-3352

Phone(888) 354-3654

Fax(253) 254-5911

Sole ProprietorNo

Enumeration DateMarch 5, 2015

Last NPPES UpdateMay 12, 20263 updates tracked since enumeration

NPPES CertifiedMay 12, 2026

✔ NPI 1083007702 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code1041C0700X

Licenses✔ Licensed in VA · 0904020154✔ Licensed in CA · 121581

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.

1005 N GLEBE RD STE 525, Arlington, VA 22201

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Secondary Practice Location 1

Location 1101 Jose Figueres Ave Ste 50San Jose, CA 95116-2068 · Phone (408) 254-6828

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Katherine M Williams Lcsw 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 22201 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 $65.18 – $194.86

Typical copayment $0.00 (range $16.29 – $48.71)

Most-billed visit code NA

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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 18

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

CORNEVA HOPE ROBINSON

Counselor (Mental Health)