1. Home
  2. Directory
  3. Georgia
  4. Decatur
  5. Psychiatry Neurology
  6. NPI Profile

DR. GIDEON LEIGH MATZKIN MD
NPI 1518451269
Psychiatry & Neurology - Psychiatry in Decatur, GA

Active since June 17, 2018
2440 LAWRENCEVILLE HWY STE 200, DECATUR, GA 30033(470) 589-5858(470) 589-4040 Get Directions Write a Review

NPPES record last updated: February 17, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Nov 6, 2025, Aug 13, 2025, Sep 15, 2024 and 4 more (7 updates tracked since 2018).

About Dr. Gideon Leigh Matzkin Md NPPES

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

DR. GIDEON LEIGH MATZKIN MD (NPI 1518451269) is an individual psychiatry provider in Decatur, Georgia, licensed in Georgia (87095) and active in the NPI registry since June 2018.

NPPES Registry Identity

NPI1518451269
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. GIDEON LEIGH MATZKINCredential: MD
Location Address2440 LAWRENCEVILLE HWY STE 200Decatur, GA 30033-3267
Mailing Address5555 Glenridge Connector Ste 200Atlanta, GA 30342-4815 · (470) 589-5858 · Fax (470) 589-4040
Phone(470) 589-5858
Fax(470) 589-4040
Sole ProprietorYes
Enumeration DateJune 17, 2018
Last NPPES UpdateFebruary 17, 20267 updates tracked since enumeration
NPPES CertifiedFebruary 17, 2026
✔ NPI 1518451269 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 GA · 87095
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.
2440 LAWRENCEVILLE HWY STE 200, Decatur, GA 30033
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Other Providers at the Same Location NPPES 3

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

DR. DELIA L LANG PHD
Psychologist (Clinical)
2440 LAWRENCEVILLE HWY STE 200
DECATUR, GA 30033
Dekalb County (404) 634-3400
ATTUNED PSYCHIATRY
Psychiatry & Neurology (Psychiatry)
2440 LAWRENCEVILLE HWY STE 200
DECATUR, GA 30033
Dekalb County (470) 589-5858
DR. LAUREN SOPHIE MARX PHD
Psychologist (Clinical Child & Adolescent)
2440 LAWRENCEVILLE HWY STE 200
DECATUR, GA 30033
Dekalb County (404) 692-3275

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 Gideon Matzkin's NPI number?

The NPI number for Gideon Matzkin is 1518451269. It was assigned to this individual provider in the NPPES registry on June 17, 2018.

Where is Gideon Matzkin located?

Gideon Matzkin practices at 2440 Lawrenceville Hwy Ste 200, Decatur, GA 30033. The listed phone number is (470) 589-5858.

What is Gideon Matzkin'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 Gideon Matzkin was last updated on February 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.