Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Warren Y Avny, DDS
Endodontics in Mt Prospect, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003948571
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Registry record
Entity type Individual (Type 1)
Name Dr. Warren Y Avny
Credential DDS
Sex Male
Practice address 411 W Walnut St, Mt Prospect, IL, 60056
Phone (847) 398-0404
Fax (847) 398-0439
Enumeration date Mar 11, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 1003948571 active?
Yes, as of the latest NPPES snapshot, NPI 1003948571 is active (record last updated 2007-07-08).
How do I verify Warren Avny's NPI record?
Cross-check NPI 1003948571 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 → Theodore Borris General Practice Dentistry · Mt Prospect, IL NPI 1770590135 Michael Dani Endodontics · Mt Prospect, IL NPI 1184756652 Best Endodontics Ltd. Endodontics · Mt Prospect, IL NPI 1285766758 Michael F. Dani DDS PC Endodontics · Mt Prospect, IL NPI 1538291000 Dr. Kana Yajima DDS General Practice Dentistry · Mount Prospect, IL NPI 1417224387
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.