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

Individual provider Psychologist · NPI 1508921321

Dr. Nicholas Hoyt St John, PHD is a Psychologist in Palo Alto, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
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

750 Welch Rd Ste 212
Palo Alto, CA 94304-1507
Phone: (650) 724-2165
Fax: (650) 724-6500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY#19784 (CA)

Record details

NPI number1508921321
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedDecember 22, 2006
Last updated in NPPESJuly 8, 2007

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