Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mary Beth E Williams, PHD, LCSW, CTS

Individual provider Clinical Social Worker · NPI 1942399811

Dr. Mary Beth E Williams, PHD, LCSW, CTS is a Clinical Social Worker in Warrenton, Virginia. Qualified in 1990, 36 years ago. Practices as a sole proprietor. Licensed in Virginia.

Years since qualifying
36
Licensed in
VA
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Practice location Address checks out

9 N 3rd St #14
Warrenton, VA 20186-3404
Phone: (540) 341-7339
Fax: (540) 341-7339
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 0904000277 (VA)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 0904000277 (VA)

Record details

NPI number1942399811
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , LCSW , CTS
Sole proprietorYes
NPI enumeratedOctober 11, 2006
Last updated in NPPESSeptember 11, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Accepts Medicare assignment Not indicated

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