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MR. MICHAEL EUGENE CALLAHAN PA-C
NPI 1467480673
Internal Medicine - Gastroenterology in Decatur, GA

Active since June 28, 2006
1670 CLAIRMONT RD, ATLANTA VA MEDICAL CENTER, DECATUR, GA 30033(404) 321-6111 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Mr. Michael Eugene Callahan Pa-c NPPES

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

MR. MICHAEL EUGENE CALLAHAN PA-C (NPI 1467480673) is an individual gastroenterology provider in Decatur, Georgia, licensed in Georgia (3240) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1467480673
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMR. MICHAEL EUGENE CALLAHANCredential: PA-C
Location Address1670 CLAIRMONT RD, ATLANTA VA MEDICAL CENTERDecatur, GA 30033-4004
Mailing Address3220 Francine DrDecatur, GA 30033-3358
Phone(404) 321-6111
Sole ProprietorYes
Enumeration DateJune 28, 2006
Last NPPES UpdateSeptember 11, 2025
✔ NPI 1467480673 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in GA · 3240
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License 3240 (GA)
1670 CLAIRMONT RD, Decatur, GA 30033
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Other Providers at the Same Location NPPES 20

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

MRS. LAPARISIENNE MOORE-BROWN LMSW
Social Worker
1670 CLAIRMONT RD
DECATUR, GA 30033
Dekalb County (404) 321-6111
BRANDON HAYGOOD
Social Worker
1670 CLAIRMONT RD
DECATUR, GA 30033
Dekalb County (404) 321-6111
ARIANNE JAMES
Registered Nurse
1670 CLAIRMONT RD
DECATUR, GA 30033
Dekalb County (404) 321-6111
KARLA MARIE GARCIA ORTIZ MD
Family Medicine
1670 CLAIRMONT RD
DECATUR, GA 30033
Dekalb County (044) 680-7354
MRS. JENNIFER REBECCA MUNRO MS, CCC/SLP
Speech-Language Pathologist
1670 CLAIRMONT RD, ATLANTA VAMC CODE 126 AUDIOLOGY AND SPEECH PATHOLOGY
DECATUR, GA 30033
Dekalb County (404) 417-2953
DR. NED WILSON HOLLAND MD
Internal Medicine (Geriatric Medicine)
1670 CLAIRMONT RD, VAMC - 11B
DECATUR, GA 30033
Dekalb County (404) 321-6111
MR. ROOSEVELT N/A DAVIS RPH
Pharmacist (Pharmacotherapy)
1670 CLAIRMONT RD
DECATUR, GA 30033
Dekalb County (404) 321-6111
CEDRELLA CAROL JONES-TAYLOR M.D.
Internal Medicine
1670 CLAIRMONT RD, PRIMARY CARE
DECATUR, GA 30033
Dekalb County (404) 321-6111

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 Michael Callahan's NPI number?

The NPI number for Michael Callahan is 1467480673. It was assigned to this individual provider in the NPPES registry on June 28, 2006.

Where is Michael Callahan located?

Michael Callahan practices at 1670 Clairmont Rd Atlanta VA Medical Center, Decatur, GA 30033. The listed phone number is (404) 321-6111.

What is Michael Callahan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Michael Callahan was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.