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

Dr. Sean C Oneill, OD

Individual provider Optometrist · NPI 1083770341

Dr. Sean C Oneill, OD is an Optometrist in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

100 W Randolph St Uppr 104
Chicago, IL 60601-3219
Phone: (312) 263-4909
Fax: (312) 263-4932
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 046009017 (IL)

Record details

NPI number1083770341
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedDecember 29, 2006
Last updated in NPPESSeptember 8, 2009
Mailing address100 W Randolph St Uppr 104, Chicago, IL 60601-3219

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