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

Individual provider Clinical Social Worker · NPI 1578902052

Mark Werner Grassinger, LCSW is a Clinical Social Worker in Stockton, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2013
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

7373 W Ln
Stockton, CA 95210-3377
Phone: (209) 476-5445
Fax: (209) 476-3528
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LCS29352 (CA)

Record details

NPI number1578902052
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJune 18, 2013
Last updated in NPPESFebruary 11, 2022

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