DR. THOMAS A MAHAN PHD
NPI 1508922147
Marriage & Family Therapist in Naperville, IL

Q: What is Thomas Mahan's NPI number?

The NPI number for Thomas Mahan is 1508922147. It was assigned to this individual provider in the NPPES registry on December 28, 2006.

Q: What is Thomas Mahan's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Mahan was last updated on October 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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 December 28, 2006

124 S WEBSTER ST, SUITE 202, NAPERVILLE, IL 60540(630) 913-1627(866) 850-1154 Get Directions Write a Review

NPPES record last updated: October 27, 2009. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Thomas A Mahan Phd NPPES

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

DR. THOMAS A MAHAN PHD (NPI 1508922147) is an individual marriage & family therapist in Naperville, Illinois, licensed in Illinois (166-000634) and active in the NPI registry since December 2006.

NPPES Registry Identity

NPI1508922147

Entity TypeIndividualMale

Primary Taxonomy106H00000X

Provider Legal NameDR. THOMAS A MAHANCredential: PHD

Location Address124 S WEBSTER ST, SUITE 202Naperville, IL 60540-5390

Mailing Address124 S Webster St, Suite 202Naperville, IL 60540-5390 · (630) 913-1627 · Fax (866) 850-1154

Phone(630) 913-1627

Fax(866) 850-1154

Sole ProprietorNo

Enumeration DateDecember 28, 2006

Last NPPES UpdateOctober 27, 2009

✔ NPI 1508922147 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in IL · 166-000634

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

124 S WEBSTER ST, Naperville, IL 60540

Open in Google Maps ↗

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 Thomas Mahan's NPI number?

The NPI number for Thomas Mahan is 1508922147. It was assigned to this individual provider in the NPPES registry on December 28, 2006.

Where is Thomas Mahan located?

Thomas Mahan practices at 124 S Webster St Suite 202, Naperville, IL 60540. The listed phone number is (630) 913-1627.

What is Thomas Mahan's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Thomas Mahan was last updated on October 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years 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.