Catherine Ann Bayer, PHD
Clinical Psychologist · Santa Rosa, CA
Catherine Ann Bayer, PHD is a clinical psychologist with a practice address in Santa Rosa, California, and NPI 1932195765, issued on Sep 27, 2005. Check the license (California PSY9696, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Catherine Ann Bayer
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- PSY9696 CA
MFC12476 INACTIVE CA
Self-reported in NPPES; status is on the state search - Practice location
- 4605 Hidden Oaks RD, Santa Rosa, CA 95404
- Phone
- (707) 546-8209
- Enumerated
- Sep 27, 2005
- Record last updated
- Jul 13, 2026
- Medicaid ID
- PSY096961 CA
- Medicare enrollment
- Enrolled (PECOS I20050322001229); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Catherine Ann Bayer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY9696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Catherine Ann Bayer among 12,647 clinical psychologist records in California
Catherine Ann Bayer, PHD is one of 12,647 clinical psychologist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 99% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1984 · median 2006 among the 2,424 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
102 clinical psychologist records list a practice address in Santa Rosa
They are 102 of the 6,884 NPPES records with a practice address in Santa Rosa, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Santa Rosa → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Ralph Ames, PHDSanta Rosa, CA 954041205994464
- Deborah Chiddix, PSY.D.Santa Rosa, CA 954041043389000
- Virginia Crossleysmith, PSYDSanta Rosa, CA 954041538130356
- Kelley Dolan, PH.D.Santa Rosa, CA 954041144239336
- Lisa Grossman, PH.D.Santa Rosa, CA 954041215994199
- Laurie Herr, PSYDSanta Rosa, CA 954041760551204
- Mary Lague, PSYCHOLOGIST PSY DSanta Rosa, CA 954041215962592
- Doug Lisle, P.H.D.Santa Rosa, CA 954041831260009
Common questions
What is Catherine Ann Bayer, PHD's NPI number?
Catherine Ann Bayer, PHD's National Provider Identifier (NPI) is 1932195765, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Ann Bayer, PHD located?
The NPPES record lists a practice address at 4605 Hidden Oaks RD, Santa Rosa, CA, 95404. Phone: (707) 546-8209. Providers update this record themselves, so call before visiting.
How can I verify Catherine Ann Bayer, PHD's license?
NPPES lists California license number PSY9696, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.