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

DR. MICHAEL WALSH GANNON PH.D., L.C.A.D.C.
NPI 1962809699
Counselor - Addiction (Substance Use Disorder) in Franklin, TN

Q: What is Michael Gannon's NPI number?

The NPI number for Michael Gannon is 1962809699. It was assigned to this individual provider in the NPPES registry on November 24, 2014.

Q: What is Michael Gannon's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Michael Gannon was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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 November 24, 2014

1337 W MAIN ST, FRANKLIN, TN 37064(615) 985-8255(615) 985-8255 Get Directions Write a Review

NPPES record last updated: October 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 6, 2026, May 9, 2026, Nov 18, 2016 (3 updates tracked since 2016).

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About Dr. Michael Walsh Gannon Ph.d., L.c.a.d.c. NPPES

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

DR. MICHAEL WALSH GANNON PH.D., L.C.A.D.C. (NPI 1962809699) is an individual addiction (substance use disorder) provider in Franklin, Tennessee, licensed in Tennessee (1520) and active in the NPI registry since November 2014.

NPPES Registry Identity

NPI1962809699

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameDR. MICHAEL WALSH GANNONCredential: PH.D., L.C.A.D.C.

Location Address1337 W MAIN STFranklin, TN 37064-3732

Mailing Address1337 W Main StFranklin, TN 37064-3732 · (615) 985-8255 · Fax (615) 985-8255

Phone(615) 985-8255

Fax(615) 985-8255

Sole ProprietorNo

Enumeration DateNovember 24, 2014

Last NPPES UpdateOctober 6, 20263 updates tracked since enumeration

NPPES CertifiedOctober 6, 2026

✔ NPI 1962809699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code101YA0400X

Licenses✔ Licensed in TN · 1520✔ Licensed in CA · 804748

1337 W MAIN ST, Franklin, TN 37064

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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 Michael Gannon's NPI number?

The NPI number for Michael Gannon is 1962809699. It was assigned to this individual provider in the NPPES registry on November 24, 2014.

Where is Michael Gannon located?

Michael Gannon practices at 1337 W Main St, Franklin, TN 37064. The listed phone number is (615) 985-8255.

What is Michael Gannon's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Michael Gannon was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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.