DR. GREGORY CLIFFORD DILLON MD
NPI 1003941287
Psychiatry & Neurology - Psychiatry in New York, NY

Q: What is Gregory Dillon's NPI number?

The NPI number for Gregory Dillon is 1003941287. It was assigned to this individual provider in the NPPES registry on February 21, 2007.

Q: What is Gregory Dillon's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Dillon was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.

Active since February 21, 2007

1133 BROADWAY STE 521, NEW YORK, NY 10010(212) 352-8184(917) 451-6313 Get Directions Write a Review

NPPES record last updated: April 7, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Gregory Clifford Dillon Md NPPES

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

DR. GREGORY CLIFFORD DILLON MD (NPI 1003941287) is an individual psychiatry provider in New York, New York, licensed in New York (217184) and active in the NPI registry since February 2007.

NPPES Registry Identity

NPI1003941287

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. GREGORY CLIFFORD DILLONCredential: MD

Location Address1133 BROADWAY STE 521New York, NY 10010-8107

Mailing Address1133 Broadway Ste 521New York, NY 10010-8107 · (212) 352-8184 · Fax (917) 451-6313

Phone(212) 352-8184

Fax(917) 451-6313

Sole ProprietorYes

Enumeration DateFebruary 21, 2007

Last NPPES UpdateApril 7, 2026

NPPES CertifiedApril 7, 2026

✔ NPI 1003941287 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in NY · 217184

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1133 BROADWAY STE 521, New York, NY 10010

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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 Dillon's NPI number?

The NPI number for Gregory Dillon is 1003941287. It was assigned to this individual provider in the NPPES registry on February 21, 2007.

Where is Gregory Dillon located?

Gregory Dillon practices at 1133 Broadway Ste 521, New York, NY 10010. The listed phone number is (212) 352-8184.

What is Gregory Dillon's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Gregory Dillon was last updated on April 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.