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

Individual provider Clinical Psychologist · NPI 1588756704

Dr. John A Lang, PHD is a Clinical Psychologist in San Francisco, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4200 18th St Ste 104
San Francisco, CA 94114-2470
Phone: (415) 252-7522
Fax: (415) 252-7522
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence PSY 20276 (CA)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY 20276 (CA)
Forensic Psychologist Taxonomy 103TF0200X · Licence PSY 20276 (CA)

Record details

NPI number1588756704
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 28, 2006
Last updated in NPPESMay 3, 2013

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