Arnold Horwitz, PH.D.
NPI 1538559794 · Marriage & Family Therapist · San Luis Obispo, CA
Arnold Horwitz, PH.D. is a Marriage & Family Therapist provider in San Luis Obispo, CA (NPI 1538559794).
Provider details
- NPI number
- 1538559794
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- M5864 (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
11 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
- 2015-01-27
- Last updated
- 2015-01-27
Frequently asked questions
- What is Arnold Horwitz's NPI number?
- Arnold Horwitz's National Provider Identifier (NPI) is 1538559794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arnold Horwitz's specialty?
- Arnold Horwitz is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Arnold Horwitz located?
- Arnold Horwitz's practice location on file with NPPES is 1605 Garnette Drive, San Luis Obispo, CA 93405.
- What is Arnold Horwitz's phone number?
- The practice phone number listed in the NPPES registry for Arnold Horwitz is (805) 541-2752.
- Is Arnold Horwitz's NPI active?
- Yes — Arnold Horwitz's NPI (1538559794) is active in the NPPES registry as of the last update on 2015-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.