Bonnie Mahler, PH.D.
Clinical Psychologist · Santa Clarita, CA
Bonnie Mahler, PH.D. is a clinical psychologist with a practice address in Santa Clarita, California, and NPI 1427134188, issued on Oct 27, 2006. Check the license (California PSY12364, 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
- Bonnie Mahler
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY12364 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23504 Lyons Ave Ste 401, Santa Clarita, CA 91321
- Phone
- (661) 260-3131
- Enumerated
- Oct 27, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (661) 255-2093
- Medicare enrollment
- Enrolled (PECOS I20171130002812); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Verify Bonnie Mahler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY12364Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bonnie Mahler among 12,647 clinical psychologist records in California
Bonnie Mahler, PH.D. 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1989 · median 2006 among the 2,424 with a school on file
- Record last updated2007 · 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).
35 clinical psychologist records list a practice address in Santa Clarita
They are 35 of the 1,835 NPPES records with a practice address in Santa Clarita, 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 Clarita → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Arnold Blumenfeld, PHDSanta Clarita, CA 913211396752093
- Donald Cowell, PH.D.Newhall, CA 913211417004474
- Julie Criss-Hagerty, PH.D.Newhall, CA 913211588753313
- Nancy Dunbar, PH.D.Newhall, CA 913211881833556
- Debra Flood, PH.D.Santa Clarita, CA 913211093878993
- Shadab Jannatipour, PSY.D.Newhall, CA 913211801911151
- Sabrina MeekSanta Clarita, CA 913211952675688
- Alex PinedaNewhall, CA 913211063061661
Common questions
What is Bonnie Mahler, PH.D.'s NPI number?
Bonnie Mahler, PH.D.'s National Provider Identifier (NPI) is 1427134188, issued on Oct 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bonnie Mahler, PH.D. located?
The NPPES record lists a practice address at 23504 Lyons Ave Ste 401, Santa Clarita, CA, 91321. Phone: (661) 260-3131. Providers update this record themselves, so call before visiting.
How can I verify Bonnie Mahler, PH.D.'s license?
NPPES lists California license number PSY12364, 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.