Gary Dec and Associates, LLC
NPI 1477840304 · Clinical Psychologist · Winfield, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Dec and Associates, LLC is a Clinical Psychologist organization in Winfield, IL (NPI 1477840304).
Provider details
- NPI number
- 1477840304
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Gary Dec, Psychologist(630) 470-0237
- License
- IL 71-3329 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-06-29
- Last updated
- 2026-02-09
- Certified
- 2026-02-09
Frequently asked questions
- What is Gary Dec and Associates, LLC's NPI number?
- Gary Dec and Associates, LLC's National Provider Identifier (NPI) is 1477840304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gary Dec and Associates, LLC?
- Gary Dec and Associates, LLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Gary Dec and Associates, LLC located?
- Gary Dec and Associates, LLC's practice location on file with NPPES is 1s115 Gardener Way, Winfield, IL 60190-2802.
- What is Gary Dec and Associates, LLC's phone number?
- The practice phone number listed in the NPPES registry for Gary Dec and Associates, LLC is (630) 470-0237.
- Does Gary Dec and Associates, LLC accept Medicare?
- Gary Dec and Associates, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Gary Dec and Associates, LLC?
- The authorized official listed on Gary Dec and Associates, LLC's NPPES record is Gary Dec, Psychologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gary Dec and Associates, LLC's NPI active?
- Yes — Gary Dec and Associates, LLC's NPI (1477840304) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.