| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| JERRY MARK O'TOOLE | Business | 071006413 | PLAINFIELD | ACTIVE | Verify |
| WILLIAM D OAKES | Business | 071001388 | LAKE ZURICH | NOT RENEWED | Verify |
| WILLIAM D OAKES | Business | 072001388 | LAKE ZURICH | CANCELLED | Verify |
| ROBIN L OATIS | Business | 071006624 | CHICAGO | NOT RENEWED | Verify |
| REEMA OBAID | Business | 071008537 | CHICAGO | ACTIVE | Verify |
| MARK I OBERLANDER | Business | 072001194 | EVANSTON | CANCELLED | Verify |
| MARK I OBERLANDER | Business | 071001194 | NORTHBROOK | NOT RENEWED | Verify |
| KATRINA TAGAAN OBLEADA | Business | 071011107 | CHICAGO | ACTIVE | Verify |
| FRANK R OBLOCK | Business | 071001389 | CHICAGO | INACTIVE | Verify |
| FRANK R OBLOCK | Business | 072001389 | CHICAGO | CANCELLED | Verify |
| MICHAEL J OBRIEN | Business | 071000265 | KANKAKEE | INACTIVE | Verify |
| MICHAEL J OBRIEN | Business | 072000265 | KANKAKEE | CANCELLED | Verify |
| CHRISTINE MARIE OCKRASSA PSYD | Business | 071010943 | ROMEOVILLE | ACTIVE | Verify |
| LINDA GAE OCONNELL | Business | 072002849 | CHICAGO | CANCELLED | Verify |
| LINDA GAE OCONNELL | Business | 071002849 | CHICAGO | ACTIVE | Verify |
| MARY OBICHUKWU ODAFE PHD | Business | 071010937 | CHICAGO | ACTIVE | Verify |
| SOPHIA CHELSEA ODEH PSYD | Business | 071011131 | CHICAGO | ACTIVE | Verify |
| HELEN ODESSKY | Business | 071006883 | CHICAGO | ACTIVE | Verify |
| KATE L ODOM | Business | 071010118 | OAK PARK | ACTIVE | Verify |
| JAMES P ODONNELL | Business | 071002860 | CARBONDALE | NOT RENEWED | Verify |
| JAMES P ODONNELL | Business | 072002860 | CARBONDALE | CANCELLED | Verify |
| ERIN MARIE ODONOHUE | Business | 071007909 | NAPERVILLE | ACTIVE | Verify |
| KELSIE-MARIE SWITZER OFFENWANGER | Business | 071010234 | JOHNSBURG | ACTIVE | Verify |
| LAUREN ELIZABETH OGANOVICH | Business | 071009183 | CHICAGO | ACTIVE | Verify |
| MARIE L OGDEN | Business | 072000719 | CHICAGO | NOT RENEWED | Verify |
| MARIE L OGDEN | Business | 071000719 | CHICAGO | NOT RENEWED | Verify |
| JULIA ANN OGG | Business | 071009771 | GENEVA | ACTIVE | Verify |
| SUSAN ANN OGRADY | Business | 071009536 | WHEELING | ACTIVE | Verify |
| MERLE M OHLSEN | Business | 072000670 | CHAMPAIGN | INACTIVE | Verify |
| MERLE M OHLSEN | Business | 071000670 | CHAMPAIGN | INACTIVE | Verify |
| BETH EGAN OKEEFE | Business | 072001681 | MOLINE | CANCELLED | Verify |
| BETH EGAN OKEEFE | Business | 071001681 | MOLINE | NOT RENEWED | Verify |
| GERALD S OKEEFE | Business | 071001632 | CHICAGO | NOT RENEWED | Verify |
| GERALD S OKEEFE | Business | 072001632 | OAK BROOK | CANCELLED | Verify |
| JOHN J OLEARY | Business | 071003487 | MONEE | NOT RENEWED | Verify |
| JOHN J OLEARY | Business | 072003487 | MONEE | CANCELLED | Verify |
| KAREN B OLENICK | Business | 071004672 | CHICAGO | INACTIVE | Verify |
| ISRAEL DAVID OLER | Business | 071006411 | RIVERWOODS | ACTIVE | Verify |
| SUSAN M OLESCH | Business | 071005095 | HUNTLEY | ACTIVE | Verify |
| MEGAN KATHLEEN OLIVERIO | Business | 071010034 | ST CHARLES | ACTIVE | Verify |
| MICHAEL ADAM OLIVERIO | Business | 071009570 | ST CHARLES | ACTIVE | Verify |
| BRADLEY W OLSON | Business | 071005464 | ARLINGTON HEIGHTS | ACTIVE | Verify |
| DENISE A OLSON PSYD | Business | 071008225 | GLEN CARBON | ACTIVE | Verify |
| JUDITH ANNE OLSON | Business | 072001269 | PARK RIDGE | NOT RENEWED | Verify |
| JUDITH ANNE OLSON | Business | 071001269 | PARK RIDGE | NOT RENEWED | Verify |
| JUSTINE MARIE OLSON | Business | 071008757 | CHICAGO | ACTIVE | Verify |
| ROBERT EDWARD OLT | Business | 071008386 | HAVANA | ACTIVE | Verify |
| KAILEY THERESE PENCE OLZACK | Business | 071022482 | CHICAGO | ACTIVE | Verify |
| MICHAEL T OMAHONEY | Business | 071001683 | CHICAGO | INACTIVE | Verify |
| MICHAEL T OMAHONEY | Business | 072001683 | ELMHURST | CANCELLED | Verify |