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Ronald Haimowitz, PH.D.
NPI 1306975313 · Clinical Psychologist · Napa, CA
Ronald Haimowitz, PH.D. is a Clinical Psychologist provider in Napa, CA (NPI 1306975313).
Provider details
- NPI number
- 1306975313
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY7930 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(89/100 index)
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
531 Jefferson St
Napa, CA 94559-3236
Phone: (707) 255-8540
Fax: (707) 251-8540
Street-level locationGet directions
Mailing address
531 Jefferson St
Napa, CA 94559-3236
Registry dates
- Enumerated
- 2007-03-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Haimowitz's NPI number?
- Ronald Haimowitz's National Provider Identifier (NPI) is 1306975313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Haimowitz's specialty?
- Ronald Haimowitz is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Ronald Haimowitz located?
- Ronald Haimowitz's practice location on file with NPPES is 531 Jefferson St, Napa, CA 94559-3236.
- What is Ronald Haimowitz's phone number?
- The practice phone number listed in the NPPES registry for Ronald Haimowitz is (707) 255-8540.
- Is Ronald Haimowitz's NPI active?
- Yes — Ronald Haimowitz's NPI (1306975313) 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.