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John Cahman, PH.D.
NPI 1285901199 · Clinical Psychologist · Los Angeles, CA
John Cahman, PH.D. is a Clinical Psychologist provider in Los Angeles, CA (NPI 1285901199).
Provider details
- NPI number
- 1285901199
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY5006 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(80/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
617 S Olive St Ste 510
Los Angeles, CA 90014-1626
Phone: (323) 258-8041
Street-level locationGet directions
Mailing address
13219 Aetna St
Valley Glen, CA 91401-3149
Registry dates
- Enumerated
- 2011-11-20
- Last updated
- 2011-11-20
Frequently asked questions
- What is John Cahman's NPI number?
- John Cahman's National Provider Identifier (NPI) is 1285901199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Cahman's specialty?
- John Cahman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is John Cahman located?
- John Cahman's practice location on file with NPPES is 617 S Olive St Ste 510, Los Angeles, CA 90014-1626.
- What is John Cahman's phone number?
- The practice phone number listed in the NPPES registry for John Cahman is (323) 258-8041.
- Is John Cahman's NPI active?
- Yes — John Cahman's NPI (1285901199) is active in the NPPES registry as of the last update on 2011-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.