Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Abigail Kay Pacyga
Behavior Technician in Darien, IL · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497649883
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Registry record
Entity type Individual (Type 1)
Name Abigail Kay Pacyga
Sex Female
Practice address 8201 Cass Ave, Darien, IL, 60561
Phone (630) 590-5571
Enumeration date Jun 9, 2025
Last updated in NPPES Jun 9, 2025
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1497649883 active?
Yes, as of the latest NPPES snapshot, NPI 1497649883 is active (record last updated 2025-06-09).
How do I verify Abigail Pacyga's NPI record?
Cross-check NPI 1497649883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → By Your Side, LLC Behavior Analyst · Darien, IL NPI 1922233923 Bys Speech and Occupational Therapy Services, LLC Speech-Language Pathologist · Darien, IL NPI 1316224462 Megan Shelton Occupational Therapist · Darien, IL NPI 1609311612 Ellizabeth Evans Behavior Analyst · Darien, IL NPI 1962912980 Bys Speech and Occupational Therapy Services, LLC Speech-Language Pathologist · Darien, IL NPI 1316459183 Jennifer Jensen Behavior Analyst · Darien, IL NPI 1821589391 Ashleigh Ulrich Behavior Analyst · Darien, IL NPI 1255897450 Karishma Patel Behavior Analyst · Darien, IL NPI 1780225680
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-09.