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
Mailing address10556 Combie Rd, P. O. Box 106525, Auburn, CA 95602-8908

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