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

Dr. John C Bolf, PHD

Individual provider Clinical Psychologist · NPI 1558489138

Dr. John C Bolf, PHD is a Clinical Psychologist in Roseville, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
Specialties on file
2
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

101 Cirby Hills Dr
Roseville, CA 95678-4360
Phone: (916) 787-8814
Fax: (916) 787-8967
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence MFT13752 (CA)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY6653 (CA)

Record details

NPI number1558489138
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 26, 2007
Last updated in NPPESSeptember 11, 2025

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