Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael Louis Halkias, O.D.
Optometrist in Naperville, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851313357
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Registry record
Entity type Individual (Type 1)
Name Dr. Michael Louis Halkias
Credential O.D.
Sex Male
Practice address 29 S Webster St, Suite 200, Naperville, IL, 60540
Phone (630) 357-3511
Enumeration date Jul 24, 2006
Last updated in NPPES Mar 17, 2018
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 Michael Halkias practice?
The practice location on file with NPPES is in Naperville, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Halkias?
The National Provider Identifier (NPI) for Michael Halkias is 1851313357, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.