Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mary Susan Thickstun, PHD, LCSW

Individual provider Clinical Social Worker · NPI 1437354875

Dr. Mary Susan Thickstun, PHD, LCSW is a Clinical Social Worker in San Diego, California. Practices as a sole proprietor and works from 2 locations. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
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

2204 National Ave
San Diego, CA 92113-3615
Phone: (619) 515-2355
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3914 3rd Ave, San Diego, CA 92103-3003 — (619) 291-4808

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 21573 (CA)

Record details

NPI number1437354875
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD , LCSW
Sole proprietorYes
NPI enumeratedJune 17, 2007
Last updated in NPPESMarch 17, 2018

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