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

Sierra Williams

Individual provider Mental Health Counselor · NPI 1962974121

Sierra Williams is a Mental Health Counselor in Arroyo Grande, California. Registered with an NPI since 2018.

In the registry since
2018

Practice location Address checks out

361 Alder St
Arroyo Grande, CA 93420-3819
Phone: (805) 448-9970
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1962974121
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 27, 2018
Last updated in NPPESAugust 18, 2020
Certification dateAugust 18, 2020
Mailing address361 Alder St, Arroyo Grande, CA 93420-3819

Other providers in Arroyo Grande