Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Aaron S Gillespie, PSYD, LPC, PSYC

Clinical Psychologist in Lafayette, CO · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1902276918

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Registry record

Entity type Individual (Type 1)

Name Dr. Aaron S Gillespie

Credential PSYD, LPC, PSYC

Sex Male

Practice address 1455 Dixon Ave, Lafayette, CO, 80026

Phone (303) 413-6307

Enumeration date Oct 2, 2015

Last updated in NPPES Oct 11, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LPC.0016659 (CO) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSYC.00015099 (CO) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Aaron Gillespie?

The National Provider Identifier (NPI) for Aaron Gillespie is 1902276918, a Type 1 (individual) record in the CMS NPPES registry.

Where does Aaron Gillespie practice?

The practice location on file with NPPES is in Lafayette, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-11.