Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ajay Katiyar, OD
Optometrist in Downers Grove, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912217951
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Registry record
Entity type Individual (Type 1)
Name Ajay Katiyar
Credential OD
Sex Male
Practice address 3800 Highland Ave Ste 100, Downers Grove, IL, 60515
Phone (630) 517-2000
Enumeration date Oct 8, 2010
Last updated in NPPES Aug 29, 2022
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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
Where does Ajay Katiyar practice?
The practice location on file with NPPES is in Downers Grove, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ajay Katiyar?
The National Provider Identifier (NPI) for Ajay Katiyar is 1912217951, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-29.