| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| HELEN V O FRIEL | Business | 070007968 | CHICAGO | NOT RENEWED | Verify |
| MERIANNE E O GRADY | Business | 070005312 | SADORUS | NOT RENEWED | Verify |
| JOSEPHINE A O HARA | Business | 070012495 | CHICAGO | NOT RENEWED | Verify |
| JUDITH K O HEARN | Business | 070006307 | EDWARDSVILLE | ACTIVE | Verify |
| SUSAN R O LEARY | Business | 160001961 | MC HENRY | NOT RENEWED | Verify |
| NICHOLE C O MEARA | Business | 160002547 | MOLINE | INACTIVE | Verify |
| LINDSAY M O NEAL | Business | 070014074 | LOCKPORT | ACTIVE | Verify |
| SHELLI L O NEAL | Business | 160003014 | MT OLIVE | ACTIVE | Verify |
| KATIE L O NEILL | Business | 070016731 | PLAINFIELD | INACTIVE | Verify |
| ELIZABETH A O RIORDAN | Business | 070011697 | CHICAGO | ACTIVE | Verify |
| PATRICIA M O' MEARA | Business | 070009905 | BLOOMINGTON | ACTIVE | Verify |
| BRIDGET I O'BRIEN | Business | 070022150 | CHICAGO | ACTIVE | Verify |
| JAMES O'BRIEN DPT | Business | 070028744 | PEORIA | ACTIVE | Verify |
| KRISTEN N O'BRIEN | Business | 070025767 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| KRISTIN J O'BRIEN | Business | 070014227 | MOKENA | ACTIVE | Verify |
| MARGARET A O'BRIEN | Business | 070007836 | ST CHARLES | NOT RENEWED | Verify |
| SHANNON ELISE O'BRIEN | Business | 070007058 | PLAINFIELD | ACTIVE | Verify |
| STEFFEN O'BRIEN | Business | 070024549 | LISLE | NOT RENEWED | Verify |
| STEPHANIE F O'BRIEN | Business | 070006759 | CHICAGO | NOT RENEWED | Verify |
| ANTHONY J O'BRIGHT | Business | 070017949 | CHICAGO | NOT RENEWED | Verify |
| KATHRYN MARIE O'BRIGHT DPT | Business | 070025842 | PALATINE | ACTIVE | Verify |
| MOLLY C O'BRYAN | Business | 070007553 | RIVERSIDE | ACTIVE | Verify |
| JULIE TRACY O'CONNELL | Business | 070008515 | CHICAGO | ACTIVE | Verify |
| LAURIE O'CONNELL | Business | 070004375 | LAGRANGE PARK | ACTIVE | Verify |
| MAUREEN E O'CONNELL | Business | 070019221 | CHICAGO | ACTIVE | Verify |
| MEREDITH C O'CONNELL | Business | 160005648 | CHICAGO | ACTIVE | Verify |
| MOIRA J O'CONNELL | Business | 160001026 | TINLEY PARK | NOT RENEWED | Verify |
| SCOTT H O'CONNER | Business | 070029670 | SHERMAN | ACTIVE | Verify |
| ALLISON L O'CONNOR | Business | 070009038 | LAKE VILLA | ACTIVE | Verify |
| ANNA A O'CONNOR | Business | 070026191 | NEW LENOX | ACTIVE | Verify |
| ANNA M O'CONNOR | Business | 070005028 | LA GRANGE PARK | ACTIVE | Verify |
| BRYAN O'CONNOR | Business | 070020889 | AURORA | ACTIVE | Verify |
| EMILY REBECCA O'CONNOR DPT | Business | 070029562 | CHICAGO | ACTIVE | Verify |
| HEATHER L O'CONNOR | Business | 070011658 | SKOKIE | ACTIVE | Verify |
| JACQUELINE S O'CONNOR | Business | 070012017 | SENECA | ACTIVE | Verify |
| LAUREN R O'CONNOR | Business | 160009329 | CRESTWOOD | ACTIVE | Verify |
| MARY A O'CONNOR | Business | 070004198 | MORTON GROVE | ACTIVE | Verify |
| NATHAN O'CONNOR | Business | 070027465 | CHICAGO | ACTIVE | Verify |
| SARAH M O'CONNOR | Business | 160009580 | WESTMONT | ACTIVE | Verify |
| SEAN T O'CONNOR | Business | 070012670 | SKOKIE | ACTIVE | Verify |
| JAMES A O'CONNOR JR | Business | 160002048 | SENECA | ACTIVE | Verify |
| VALERIE HADDON O'DEA | Business | 070004980 | GLEN ELLYN | ACTIVE | Verify |
| PEGGY L O'DELL | Business | 160002183 | WILLOW HILL | NOT RENEWED | Verify |
| SARAH M O'DELL | Business | 070021697 | LOCKPORT | ACTIVE | Verify |
| AMBER L O'DONNELL | Business | 070013771 | COLUMBIA | ACTIVE | Verify |
| ASHLEY M O'DONNELL | Business | 070028591 | CHICAGO | ACTIVE | Verify |
| CARRIE L O'DONNELL | Business | 070013105 | MORRIS | ACTIVE | Verify |
| DENISE A O'DONNELL | Business | 160000452 | ORLAND PARK | NOT RENEWED | Verify |
| ELLEN J O'DONNELL | Business | 070007655 | CHICAGO | NOT RENEWED | Verify |
| KERRY M O'DONNELL | Business | 070013868 | CHICAGO | NOT RENEWED | Verify |