Gregory Haggerty, PH.D.
NPI 1881910016 · Clinical Psychologist · Massapequa, NY
Gregory Haggerty, PH.D. is a Clinical Psychologist provider in Massapequa, NY (NPI 1881910016).
Provider details
- NPI number
- 1881910016
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 018419 (NY)
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
16 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
- 2010-04-13
- Last updated
- 2010-04-13
Frequently asked questions
- What is Gregory Haggerty's NPI number?
- Gregory Haggerty's National Provider Identifier (NPI) is 1881910016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Haggerty's specialty?
- Gregory Haggerty is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gregory Haggerty located?
- Gregory Haggerty's practice location on file with NPPES is 627 Broadway Ste 200, Massapequa, NY 11758-5031.
- What is Gregory Haggerty's phone number?
- The practice phone number listed in the NPPES registry for Gregory Haggerty is (516) 551-8655.
- Is Gregory Haggerty's NPI active?
- Yes — Gregory Haggerty's NPI (1881910016) is active in the NPPES registry as of the last update on 2010-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.