IndividualActive
Roy Grabow, PH.D.
NPI 1336327253 · Psychologist · Davis, CA
Roy Grabow, PH.D. is a Psychologist provider in Davis, CA (NPI 1336327253).
Provider details
- NPI number
- 1336327253
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY9081 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(88/100 index)
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
105 E St
Suite 2- I
Davis, CA 95616-4697
Phone: (530) 756-1273
Street-level locationGet directions
Mailing address
105 E St
Davis, CA 95616-4697
Registry dates
- Enumerated
- 2008-02-01
- Last updated
- 2008-02-01
Frequently asked questions
- What is Roy Grabow's NPI number?
- Roy Grabow's National Provider Identifier (NPI) is 1336327253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roy Grabow's specialty?
- Roy Grabow is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Roy Grabow located?
- Roy Grabow's practice location on file with NPPES is 105 E St, Davis, CA 95616-4697.
- What is Roy Grabow's phone number?
- The practice phone number listed in the NPPES registry for Roy Grabow is (530) 756-1273.
- Is Roy Grabow's NPI active?
- Yes — Roy Grabow's NPI (1336327253) is active in the NPPES registry as of the last update on 2008-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.