Alan Berkowitz, PH.D.
NPI 1639378516 · Clinical Psychologist · Calabasas, CA
Alan Berkowitz, PH.D. is a Clinical Psychologist provider in Calabasas, CA (NPI 1639378516).
Provider details
- NPI number
- 1639378516
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY5957 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
18 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
- 2007-07-12
- Last updated
- 2007-10-27
Frequently asked questions
- What is Alan Berkowitz's NPI number?
- Alan Berkowitz's National Provider Identifier (NPI) is 1639378516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Berkowitz's specialty?
- Alan Berkowitz is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Alan Berkowitz located?
- Alan Berkowitz's practice location on file with NPPES is 5000 Parkway Calabasas, Calabasas, CA 91302-1400.
- What is Alan Berkowitz's phone number?
- The practice phone number listed in the NPPES registry for Alan Berkowitz is (818) 223-8670.
- Is Alan Berkowitz's NPI active?
- Yes — Alan Berkowitz's NPI (1639378516) is active in the NPPES registry as of the last update on 2007-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.