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

DR. GREGORY ALAN GAHM PH.D.
NPI 1184698839
Psychologist - Clinical in Tacoma, WA

Q: What is Gregory Gahm's NPI number?

The NPI number for Gregory Gahm is 1184698839. It was assigned to this individual provider in the NPPES registry on February 16, 2006.

Q: What is Gregory Gahm's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Gahm 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 53 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.

Active since February 16, 2006

DEPARTMENT OF PSYCHOLOGY, MADIGAN ARMY MEDICAL CENTER, TACOMA, WA 98431(253) 968-2839 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

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About Dr. Gregory Alan Gahm Ph.d. NPPES

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

DR. GREGORY ALAN GAHM PH.D. (NPI 1184698839) is an individual clinical provider in Tacoma, Washington, licensed in Missouri (01349) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1184698839

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. GREGORY ALAN GAHMCredential: PH.D.

Location AddressDEPARTMENT OF PSYCHOLOGY, MADIGAN ARMY MEDICAL CENTERTacoma, WA 98431-0001

Mailing Address4124 41st Loop SeOlympia, WA 98501-6223 · (360) 753-4589

Phone(253) 968-2839

Sole ProprietorNo

Enumeration DateFebruary 16, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1184698839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in MO · 01349

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

DEPARTMENT OF PSYCHOLOGY, Tacoma, WA 98431

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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 Gahm's NPI number?

The NPI number for Gregory Gahm is 1184698839. It was assigned to this individual provider in the NPPES registry on February 16, 2006.

Where is Gregory Gahm located?

Gregory Gahm practices at Department Of Psychology Madigan Army Medical Center, Tacoma, WA 98431. The listed phone number is (253) 968-2839.

What is Gregory Gahm's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Gregory Gahm 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 53 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.