GARY DEC AND ASSOCIATES, LLC
NPI 1477840304
Psychologist - Clinical in Winfield, IL

Q: What is Gary Dec And Associates, LLC's NPI number?

The NPI number for Gary Dec And Associates, LLC is 1477840304. It was assigned to this organization in the NPPES registry on June 29, 2011.

Q: What is Gary Dec And Associates, LLC's specialty?

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

Active since June 29, 2011

1S115 GARDENER WAY, WINFIELD, IL 60190(630) 470-0237 Get Directions Write a Review

NPPES record last updated: February 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Gary Dec And Associates, Llc NPPES

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

GARY DEC AND ASSOCIATES, LLC (NPI 1477840304) is a healthcare organization registered as a clinical in Winfield, Illinois and active in the NPI registry since June 2011. The organization lists Gary R Dec, Psychologist, as its authorized official.

NPPES Registry Identity

NPI1477840304

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameGARY DEC AND ASSOCIATES, LLC

Location Address1S115 GARDENER WAYWinfield, IL 60190-2802

Mailing Address1s115 Gardener WayWinfield, IL 60190-2802 · (630) 470-0237

Phone(630) 470-0237

Organization SubpartNo

Authorized OfficialGary R DecPsychologist · (630) 470-0237

Enumeration DateJune 29, 2011

Last NPPES UpdateFebruary 9, 2026

NPPES CertifiedFebruary 9, 2026

✔ NPI 1477840304 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 IL · IL 71-3329

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.

1S115 GARDENER WAY, Winfield, IL 60190

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gary Dec And Associates, Llc 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 Gary Dec And Associates, LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Gary Dec, PSY.D.

Clinical Psychologist

NPI 1528137684

1S115 GARDENER WAY
Winfield, IL 60190

(630) 470-0237

✔ PECOSSame 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 Gary Dec And Associates, LLC's NPI number?

The NPI number for Gary Dec And Associates, LLC is 1477840304. It was assigned to this organization in the NPPES registry on June 29, 2011.

Where is Gary Dec And Associates, LLC located?

Gary Dec And Associates, LLC is located at 1s115 Gardener Way, Winfield, IL 60190. The listed phone number is (630) 470-0237.

What is Gary Dec And Associates, LLC's specialty?

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

Is Gary Dec And Associates, LLC enrolled in Medicare?

Yes. Gary Dec And Associates, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gary Dec And Associates, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Psychologist) reassigns their Medicare billing to Gary Dec And Associates, LLC. 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.

When was this NPI record last updated?

The NPPES record for Gary Dec And Associates, LLC was last updated on February 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.