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

Dr. John Chapman Lucas, PHD

Individual provider Psychologist · NPI 1639365992

Dr. John Chapman Lucas, PHD is a Psychologist in Santa Rosa, California. Practices as a sole proprietor. 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.

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Practice location Address checks out

1144 Sonoma Ave Ste 111
Santa Rosa, CA 95405-4812
Phone: (707) 576-0576
Fax: (707) 576-7559
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence LEP867 (CA)

Record details

NPI number1639365992
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 20, 2007
Last updated in NPPESSeptember 20, 2007

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