LESLIE GELLIS PH.D
NPI 1336552959
Psychologist - Cognitive & Behavioral in Syracuse, NY

Q: What is Leslie Gellis's NPI number?

The NPI number for Leslie Gellis is 1336552959. It was assigned to this individual provider in the NPPES registry on June 11, 2014. The provider is also known as Les Gellis Ph.D.

Q: What is Leslie Gellis's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Cognitive & Behavioral, with taxonomy code 103TB0200X.

Q: When was this NPI record last updated?

The NPPES record for Leslie Gellis was last updated on June 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 June 11, 2014

804 UNIVERSITY AVE, 201, SYRACUSE, NY 13210(315) 443-3595 Get Directions Write a Review

NPPES record last updated: June 11, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Leslie Gellis Ph.d NPPES

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

LESLIE GELLIS PH.D (NPI 1336552959) is an individual cognitive & behavioral provider in Syracuse, New York, licensed in New York (018822-1) and active in the NPI registry since June 2014.

NPPES Registry Identity

NPI1336552959

Entity TypeIndividualMale

Primary Taxonomy103TB0200X

Provider Legal NameLESLIE GELLISCredential: PH.D

Location Address804 UNIVERSITY AVE, 201Syracuse, NY 13210-1721

Mailing Address804 University Ave, 201Syracuse, NY 13210-1721 · (315) 443-3595

Phone(315) 443-3595

Sole ProprietorNo

Enumeration DateJune 11, 2014

✔ NPI 1336552959 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Cognitive & BehavioralBehavioral Health & Social Service Providers

Taxonomy Code103TB0200X

License✔ Licensed in NY · 018822-1

Definition

A psychologist who reflects an experimental-clinical approach distinguished by use of principles of human learning and development and theories of cognitive processing to promote meaningful change in maladaptive human behavior and thinking.

804 UNIVERSITY AVE, Syracuse, NY 13210

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Other Names 1

Other Name (5)Les Gellis Ph.d

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 Leslie Gellis's NPI number?

The NPI number for Leslie Gellis is 1336552959. It was assigned to this individual provider in the NPPES registry on June 11, 2014. The provider is also known as Les Gellis Ph.D.

Where is Leslie Gellis located?

Leslie Gellis practices at 804 University Ave 201, Syracuse, NY 13210. The listed phone number is (315) 443-3595.

What is Leslie Gellis's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Cognitive & Behavioral, with taxonomy code 103TB0200X.

When was this NPI record last updated?

The NPPES record for Leslie Gellis was last updated on June 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.