G. GARY LEIGH, PH.D., P.C.
NPI 1366715757
Psychologist - Clinical in Chattanooga, TN

Q: What is G. Gary Leigh, Ph.D., P.C.'s NPI number?

The NPI number for G. Gary Leigh, Ph.D., P.C. is 1366715757. It was assigned to this organization in the NPPES registry on February 15, 2012.

Q: What is G. Gary Leigh, Ph.D., P.C.'s specialty?

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

Active since February 15, 2012

7155 LEE HWY STE 300, CHATTANOOGA, TN 37421(423) 553-7560(423) 648-9291 Get Directions Write a Review

NPPES record last updated: May 21, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 21, 2025, Mar 2, 2022, Nov 4, 2019 (3 updates tracked since 2019).

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About G. Gary Leigh, Ph.d., P.c. NPPES

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

G. GARY LEIGH, PH.D., P.C. (NPI 1366715757) is a healthcare organization registered as a clinical in Chattanooga, Tennessee and active in the NPI registry since February 2012. The organization lists George Gary Leigh, Ceo, as its authorized official.

NPPES Registry Identity

NPI1366715757

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameG. GARY LEIGH, PH.D., P.C.

Location Address7155 LEE HWY STE 300Chattanooga, TN 37421-0802

Mailing Address7155 Lee Hwy Ste 300Chattanooga, TN 37421-0802 · (423) 553-7560 · Fax (423) 648-9291

Phone(423) 553-7560

Fax(423) 648-9291

Organization SubpartNo

Authorized OfficialGeorge Gary LeighCeo · (423) 718-4035

Enumeration DateFebruary 15, 2012

Last NPPES UpdateMay 21, 20253 updates tracked since enumeration

NPPES CertifiedMay 21, 2025

✔ NPI 1366715757 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 TN · TNP590

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.

7155 LEE HWY STE 300, Chattanooga, TN 37421

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Other Identifiers 1

Other0017400TN · Blue Shield

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Alliant Health Plans, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

G. Gary Leigh, Ph.d., P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to G. Gary Leigh, Ph.D., P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

George Leigh, PHD

Clinical Psychologist

NPI 1215045216

7155 LEE HWY STE 300
Chattanooga, TN 37421

(423) 648-9290

✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 G. Gary Leigh, Ph.D., P.C.'s NPI number?

The NPI number for G. Gary Leigh, Ph.D., P.C. is 1366715757. It was assigned to this organization in the NPPES registry on February 15, 2012.

Where is G. Gary Leigh, Ph.D., P.C. located?

G. Gary Leigh, Ph.D., P.C. is located at 7155 Lee Hwy Ste 300, Chattanooga, TN 37421. The listed phone number is (423) 553-7560.

What is G. Gary Leigh, Ph.D., P.C.'s specialty?

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

Is G. Gary Leigh, Ph.D., P.C. enrolled in Medicare?

Yes. G. Gary Leigh, Ph.D., P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through G. Gary Leigh, Ph.D., P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to G. Gary Leigh, Ph.D., P.C.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does G. Gary Leigh, Ph.D., P.C. accept?

Health plans from Alliant Health Plans, Inc. list G. Gary Leigh, Ph.D., P.C. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for G. Gary Leigh, Ph.D., P.C. was last updated on May 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.