Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Thomas Guerin, DC
Chiropractor in Lisle, IL · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1235678913
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Registry record
Entity type Individual (Type 1)
Name Thomas Guerin
Credential DC
Sex Male
Practice address 2745 Maple Ave Ste D, Lisle, IL, 60532
Phone (773) 610-5956
Enumeration date Feb 15, 2017
Last updated in NPPES Dec 16, 2024
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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.
Frequently asked questions
Is NPI 1235678913 active?
Yes, as of the latest NPPES snapshot, NPI 1235678913 is active (record last updated 2024-12-16).
How do I verify Thomas Guerin's NPI record?
Cross-check NPI 1235678913 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-16.