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

Mr. Mark Ludwig, LCSW

Individual provider Clinical Social Worker · NPI 1245511484

Mr. Mark Ludwig, LCSW is a Clinical Social Worker in Berkeley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2011
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

2246 6th St
Berkeley, CA 94710-2219
Phone: (510) 387-5845
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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 19530 (CA)

Record details

NPI number1245511484
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedSeptember 1, 2011
Last updated in NPPESSeptember 1, 2011
Mailing address201 Highland Ave., Piedmont, CA 94611

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