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Bruce Grellong, PH.D.
NPI 1144316753 · Psychologist · New York, NY
Bruce Grellong, PH.D. is a Psychologist provider in New York, NY (NPI 1144316753).
Provider details
- NPI number
- 1144316753
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4702-1 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 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
120 W. 57th St.
New York, NY 10019-3371
Phone: (212) 632-4666
Fax: (212) 584-8484
Street-level locationGet directions
Mailing address
205 W. 89th St.
New York, NY 10024-1838
Registry dates
- Enumerated
- 2006-10-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is Bruce Grellong's NPI number?
- Bruce Grellong's National Provider Identifier (NPI) is 1144316753, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bruce Grellong's specialty?
- Bruce Grellong is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Bruce Grellong located?
- Bruce Grellong's practice location on file with NPPES is 120 W. 57th St., New York, NY 10019-3371.
- What is Bruce Grellong's phone number?
- The practice phone number listed in the NPPES registry for Bruce Grellong is (212) 632-4666.
- Is Bruce Grellong's NPI active?
- Yes — Bruce Grellong's NPI (1144316753) 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.