Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Leon J. Kosek, OD

Organization Optometrist · NPI 1407975782

Leon J. Kosek, OD is an Optometrist in Frankfort, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007

Practice location Address checks out

600 Bankview Dr
Frankfort, IL 60423-1489
Phone: (815) 469-8541
Fax: (815) 469-8126
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046007472 (IL)

Record details

NPI number1407975782
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Leon Kosek — Owner · (815) 469-8541
NPI enumeratedMarch 28, 2007
Last updated in NPPESDecember 31, 2009
Mailing address600 Bankview Dr, Frankfort, IL 60423-1489

Other providers in Frankfort