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

Heidi Stein, LCSW

Individual provider Social Worker · NPI 1891202248

Heidi Stein, LCSW is a Social Worker in Sunnyvale, California. Licensed in California. Registered with an NPI since 2018.

Licensed in
CA
In the registry since
2018
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

301 Old San Francisco Rd
Sunnyvale, CA 94086-6386
Phone: (408) 730-2864
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 76465 (CA)

Record details

NPI number1891202248
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorNo
NPI enumeratedJanuary 8, 2018
Last updated in NPPESJanuary 8, 2018
Mailing address4134 Amaranta Ct, Palo Alto, CA 94306-3906

Other providers in Sunnyvale