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DR. GREGORY DANIEL HAGGERTY PH.D.
NPI 1881910016
Psychologist - Clinical in Massapequa, NY

Active since April 13, 2010
627 BROADWAY STE 200, MASSAPEQUA, NY 11758(516) 551-8655 Get Directions Write a Review

NPPES record last updated: April 13, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gregory Daniel Haggerty Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY DANIEL HAGGERTY PH.D. (NPI 1881910016) is an individual clinical provider in Massapequa, New York, licensed in New York (018419) and active in the NPI registry since April 2010.

NPPES Registry Identity

NPI1881910016
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. GREGORY DANIEL HAGGERTYCredential: PH.D.
Location Address627 BROADWAY STE 200Massapequa, NY 11758-5031
Mailing Address320 1st AveMassapequa Park, NY 11762-1849 · (516) 551-8655
Phone(516) 551-8655
Sole ProprietorYes
Enumeration DateApril 13, 2010
✔ NPI 1881910016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in NY · 018419
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
627 BROADWAY STE 200, Massapequa, NY 11758
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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ISLAND LIGHTHOUSE CONSULTATION SERVICES, NP IN PSYCHIATRY, P.C.
Nurse Practitioner (Psychiatric/Mental Health)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 399-0797
DIBIASE COUNSELING LCSW, P.C.
Social Worker (Clinical)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 308-1078
HAMMAD MOHSIN PSYCHIATRY PC
Psychiatry & Neurology (Psychiatry)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 400-3926
DR. JUDITH BARBARA ROSENBLUM PH.D.
Psychologist (Clinical)
627 BROADWAY STE 200
MASSAPEQUA, NY 11758
Nassau County (516) 409-8495

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Haggerty's NPI number?

The NPI number for Gregory Haggerty is 1881910016. It was assigned to this individual provider in the NPPES registry on April 13, 2010.

Where is Gregory Haggerty located?

Gregory Haggerty practices at 627 Broadway Ste 200, Massapequa, NY 11758. The listed phone number is (516) 551-8655.

What is Gregory Haggerty's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Gregory Haggerty was last updated on April 13, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.