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

William Justin Carlson, LCSW

Individual provider Clinical Social Worker · NPI 1558843516

William Justin Carlson, LCSW is a Clinical Social Worker in Stanford, California. Qualified in 2020, 6 years ago. Practices with Stanford Health Care, a 3,085-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
6
Licensed in
CA
In the registry since
2018
Specialties on file
2
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

300 Pasteur Dr
Stanford, CA 94305-2200
Phone: (650) 723-4000
Show map & directions

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

Additional practice locations (2)

  • 1766 Terrace Dr, Belmont, CA 94002-1757 — (707) 338-7184
  • 1328 2nd St, Santa Monica, CA 90401-1122 — (310) 394-6889

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 114624 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1558843516
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorYes
NPI enumeratedSeptember 5, 2018
Last updated in NPPESNovember 15, 2024
Certification dateNovember 15, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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