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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.

GREGORY ALLEN GERGANS M.D.
NPI 1194796409
General Practice in Evanston, IL

Active since January 27, 2006
2221 GRANT ST, EVANSTON, IL 60201(773) 732-3289 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Gregory Allen Gergans M.d. NPPES

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

GREGORY ALLEN GERGANS M.D. (NPI 1194796409) is an individual general practice provider in Evanston, Illinois and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1194796409
Entity TypeIndividualMale
Primary Taxonomy208D00000X
Provider Legal NameGREGORY ALLEN GERGANSCredential: M.D.
Location Address2221 GRANT STEvanston, IL 60201-2503
Mailing Address2221 Grant StEvanston, IL 60201-2503 · (773) 732-3289
Phone(773) 732-3289
Sole ProprietorNo
Enumeration DateJanuary 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1194796409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians
Taxonomy Code208D00000X
Definition
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee
2221 GRANT ST, Evanston, IL 60201
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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 Gergans's NPI number?

The NPI number for Gregory Gergans is 1194796409. It was assigned to this individual provider in the NPPES registry on January 27, 2006.

Where is Gregory Gergans located?

Gregory Gergans practices at 2221 Grant St, Evanston, IL 60201. The listed phone number is (773) 732-3289.

What is Gregory Gergans's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

When was this NPI record last updated?

The NPPES record for Gregory Gergans was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 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.