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G. Grant Holtzberg, PH.D.
NPI 1710900741 · Psychologist · West Hartford, CT
G. Grant Holtzberg, PH.D. is a Psychologist provider in West Hartford, CT (NPI 1710900741).
Provider details
- NPI number
- 1710900741
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 1538 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 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
345 N Main St
Suite 302
West Hartford, CT 06117-2515
Phone: (860) 233-9772
Fax: (860) 236-9402
Street-level locationGet directions
Mailing address
345 N Main St
West Hartford, CT 06117-2515
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is G. Grant Holtzberg's NPI number?
- G. Grant Holtzberg's National Provider Identifier (NPI) is 1710900741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is G. Grant Holtzberg's specialty?
- G. Grant Holtzberg is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is G. Grant Holtzberg located?
- G. Grant Holtzberg's practice location on file with NPPES is 345 N Main St, West Hartford, CT 06117-2515.
- What is G. Grant Holtzberg's phone number?
- The practice phone number listed in the NPPES registry for G. Grant Holtzberg is (860) 233-9772.
- Is G. Grant Holtzberg's NPI active?
- Yes — G. Grant Holtzberg's NPI (1710900741) 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.