| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| ELIZABETH V O'CONNELL DDS | Business | 31*****21 | MELROSE PARK | NOT RENEWED | Verify |
| ELIZABETH V O'CONNELL DDS | Business | 31*****20 | LA GRANGE PARK | NOT RENEWED | Verify |
| SHARON O'CONNELL | Business | 020017215 | HAINESVILLE | ACTIVE | Verify |
| TAMI O'CONNELL-SLIWA | Business | 020008473 | CHICAGO | ACTIVE | Verify |
| DEREK LEO O'CONNOR DDS | Business | 019033232 | BOURBONNAIS | ACTIVE | Verify |
| DEREK LEO O'CONNOR DDS | Business | 31*****68 | BOURBONNAIS | ACTIVE | Verify |
| KATHLEEN O'CONNOR | Business | 020006110 | ORLAND PARK | INACTIVE | Verify |
| KELLY L O'CONNOR DDS | Business | 019020584 | BOURBONNAIS | ACTIVE | Verify |
| KELLY L O'CONNOR DDS | Business | 31*****60 | BOURBONNAIS | ACTIVE | Verify |
| LINDA S O'CONNOR | Business | 020004480 | DEKALB | NOT RENEWED | Verify |
| SAMANTHA N O'CONNOR | Business | 020014992 | HOFFMAN ESTATES | ACTIVE | Verify |
| DESTINY O'CONNOR DE LOS RIOS | Business | 020018179 | CHICAGO | ACTIVE | Verify |
| MAURA O'CONNOR HELLMICH | Business | 020006052 | PALOS PARK | ACTIVE | Verify |
| KELLI V O'DEA | Business | 020012299 | CHICAGO | NOT RENEWED | Verify |
| MICHELLE O'DEA | Business | 020007284 | CHICAGO | ACTIVE | Verify |
| JANE S O'DONNELL | Business | 020009571 | TINLEY PARK | ACTIVE | Verify |
| JOSEPH MICHAEL O'DONNELL | Business | 31*****09 | OAK FOREST | ACTIVE | Verify |
| JOSEPH MICHAEL O'DONNELL | Business | 019018147 | OAK FOREST | ACTIVE | Verify |
| BRIAN JOSEPH O'DONOVAN | Business | 019018212 | AURORA | ACTIVE | Verify |
| BRIAN JOSEPH O'DONOVAN | Business | 31*****75 | AURORA | ACTIVE | Verify |
| LISA A O'GRADY DMD | Business | 020007245 | ORLAND PARK | NOT RENEWED | Verify |
| LISA A O'GRADY DMD | Business | 31*****54 | MORRIS | ACTIVE | Verify |
| LISA A O'GRADY DMD | Business | 019023659 | MORRIS | ACTIVE | Verify |
| SEAN MICHAEL O'GRADY DMD | Business | 31*****61 | CHICAGO | NOT RENEWED | Verify |
| SEAN MICHAEL O'GRADY DMD | Business | 019029178 | CHICAGO | NOT RENEWED | Verify |
| PATRICK ANTHONY O'HARA DMD | Business | 31*****96 | SCHAUMBURG | ACTIVE | Verify |
| PATRICK ANTHONY O'HARA DMD | Business | 019028334 | SCHAUMBURG | ACTIVE | Verify |
| PATRICK ANTHONY O'HARA DMD | Business | 021002516 | SCHAUMBURG | ACTIVE | Verify |
| SUSAN L DONNELLY O'HARA | Business | 020004165 | CHICAGO | NOT RENEWED | Verify |
| MAUREEN A O'HARE | Business | 020017440 | BARTLETT | ACTIVE | Verify |
| SKYLER AUTUMN O'HERN | Business | 020016627 | ROSCOE | ACTIVE | Verify |
| COLIN E O'KASICK DMD | Business | 31*****64 | WEST CHICAGO | ACTIVE | Verify |
| COLIN E O'KASICK DMD | Business | 019035137 | WEST CHICAGO | ACTIVE | Verify |
| CANDICE O'KEEFE | Business | 020008544 | TINLEY PARK | ACTIVE | Verify |
| STACY L O'KRASKI | Business | 020013673 | SYCAMORE | ACTIVE | Verify |
| JOSEPH P O'LEARY DDS | Business | 019022203 | ROCKFORD | INACTIVE | Verify |
| KARA O'LEARY | Business | 020017314 | CHICAGO | ACTIVE | Verify |
| SUZANNE JEAN O'LEARY | Business | 020010449 | MOKENA | ACTIVE | Verify |
| MIRIAM C O'MALLEY | Business | 018000617 | CHICAGO | NOT RENEWED | Verify |
| PATRICK J O'MALLEY | Business | 31*****57 | BLOOMINGTON | NOT RENEWED | Verify |
| PATRICK J O'MALLEY | Business | 019020104 | BLOOMINGTON | NOT RENEWED | Verify |
| SHERRI L O'MALLEY | Business | 020006371 | BELVIDERE | NOT RENEWED | Verify |
| KATHLEEN M O'MALLEY ENGELS | Business | 020007512 | CLARENDON HILLS | NOT RENEWED | Verify |
| ANN O'MEARA | Business | 020014035 | TINLEY PARK | ACTIVE | Verify |
| CELESTE M O'NEAL | Business | 020014044 | CARMI | NOT RENEWED | Verify |
| JENNA M O'NEIL | Business | 020011198 | OAK FOREST | ACTIVE | Verify |
| ASHLEY O'NEILL | Business | 020015660 | CHICAGO | ACTIVE | Verify |
| CIARA A O'NEILL | Business | 018000656 | CHICAGO | NOT RENEWED | Verify |
| DONNA LEE O'NEILL | Business | 020004054 | FREEPORT | NOT RENEWED | Verify |
| EDGAR P O'NEILL | Business | 31*****11 | JUSTICE | NOT RENEWED | Verify |