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

Catherine Ann Bayer, PHD

Individual provider Marriage & Family Therapist · NPI 1932195765

Catherine Ann Bayer, PHD is a Clinical Psychologist in Santa Rosa, California. Qualified in 1984, 42 years ago. Accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
42
Licensed in
CA
In the registry since
2005
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

4605 Hidden Oaks Rd
Santa Rosa, CA 95404-9541
Phone: (707) 546-8209
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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 PSY9696 (CA)
Marriage & Family Therapist Taxonomy 106H00000X · Licence MFC12476 INACTIVE (CA)

Record details

NPI number1932195765
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 27, 2005
Last updated in NPPESJuly 13, 2026
Certification dateJanuary 9, 2020
Mailing addressPo Box 2453, Santa Rosa, CA 95405-0453

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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