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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GREGORY JOSEPH FIRMAN M.D.
NPI 1124008875
Psychiatry & Neurology - Psychiatry in Brooklyn, NY

Active since January 19, 2006
225 STERLING PLACE, #4N, BROOKLYN, NY 11238(413) 519-9603 Get Directions Write a Review

NPPES record last updated: August 2, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Gregory Joseph Firman M.d. NPPES

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

DR. GREGORY JOSEPH FIRMAN M.D. (NPI 1124008875) is an individual psychiatry provider in Brooklyn, New York, licensed in New York (102926) and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1124008875
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GREGORY JOSEPH FIRMANCredential: M.D.
Location Address225 STERLING PLACE, #4NBrooklyn, NY 11238-4693
Mailing Address225 Sterling Place, Suite 4nBrooklyn, NY 11238-4693 · (413) 519-9603
Phone(413) 519-9603
Sole ProprietorYes
Enumeration DateJanuary 19, 2006
Last NPPES UpdateAugust 2, 2026
NPPES CertifiedJuly 3, 2023
✔ NPI 1124008875 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 · 102926
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.
225 STERLING PLACE, Brooklyn, NY 11238
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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 Firman's NPI number?

The NPI number for Gregory Firman is 1124008875. It was assigned to this individual provider in the NPPES registry on January 19, 2006.

Where is Gregory Firman located?

Gregory Firman practices at 225 Sterling Place #4n, Brooklyn, NY 11238. The listed phone number is (413) 519-9603.

What is Gregory Firman'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 Firman was last updated on August 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 days 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.