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

John Stewart Ensign, PHD

Individual provider Clinical Psychologist · NPI 1669573143

John Stewart Ensign, PHD is a Clinical Psychologist in Davis, 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

433 F St
Davis, CA 95616-4111
Phone: (530) 304-0711
Fax: (530) 297-2609
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY14539 (CA)

Record details

NPI number1669573143
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 26, 2006
Last updated in NPPESJuly 26, 2022
Certification dateJuly 26, 2022
Mailing address433 F St, Davis, CA 95616-4111

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