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

Sandra D Willliams, PHD

Individual provider Mental Health Counselor · NPI 1124461215

Sandra D Willliams, PHD is a Mental Health Counselor in Barstow, California. Practices as a sole proprietor. Registered with an NPI since 2013.

In the registry since
2013
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

222 E Main St Ste 117
Barstow, CA 92311-2361
Phone: (760) 255-1496
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1124461215
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedApril 9, 2013
Last updated in NPPESApril 9, 2013
Mailing address222 E Main St Ste 117, Barstow, CA 92311-2361

Other providers in Barstow