Bonnie Mahler, PH.D.
NPI 1427134188 · Clinical Psychologist · Santa Clarita, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bonnie Mahler, PH.D. is a Clinical Psychologist provider in Santa Clarita, CA (NPI 1427134188).
Provider details
- NPI number
- 1427134188
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY12364 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Bonnie Mahler's NPI number?
- Bonnie Mahler's National Provider Identifier (NPI) is 1427134188, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bonnie Mahler's specialty?
- Bonnie Mahler is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Bonnie Mahler located?
- Bonnie Mahler's practice location on file with NPPES is 23504 Lyons Ave Ste 401, Santa Clarita, CA 91321-5777.
- What is Bonnie Mahler's phone number?
- The practice phone number listed in the NPPES registry for Bonnie Mahler is (661) 260-3131.
- Does Bonnie Mahler accept Medicare?
- Bonnie Mahler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bonnie Mahler's NPI active?
- Yes — Bonnie Mahler's NPI (1427134188) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.