| ADVANCED EYE CARE SURGERY CENTER | MANSFIELD | — |
| AFFILIATED AMBULATORY SURGERY CENTER LLC | DUBLIN | — |
| AKRON SURGICAL ASSOCIATES LLC | AKRON | — |
| ANDERSON ENDOSCOPY CENTER | CINCINNATI | — |
| ASCENT SURGERY CENTER LLC | CANTON | — |
| ATHENS SURGERY CENTER LTD | ATHENS | — |
| AVAMAR CENTER FOR ENDOSCOPYINC | WARREN | — |
| AVON SURGERY CENTER | AVON | — |
| BEACON ORTHOPAEDICS SURGERY CENTER | CINCINNATI | — |
| BEACON ORTHOPAEDICS SURGERY CENTER | CINCINNATI | — |
| BEST CENTERS OF AMERICA OHIO LLC | CINCINNATI | — |
| BLUE ASH ENDOSCOPY CENTER LLC | CINCINNATI | — |
| BRADENTON SURGERY CENTER LLC | DUBLIN | — |
| BRAINARD SURGERY CENTER | LYNDHURST | — |
| BRECKSVILLE SURGERY CTR | BRECKSVILLE | — |
| CAMBRIDGE SURGICAL SUITES LLC | CAMBRIDGE | — |
| CASE CENTER FOR SURGERY ENDOSCOPY LLC | LIMA | — |
| CEI PHYSICIANS PSC LLC DBA NOVUS CLINIC | TALLMADGE | — |
| CENTER FOR ADVANCED EYE SURGERYLTD | POLAND | — |
| CENTRAL OHIO ENDOSCOPY CENTER LLC | WESTERVILLE | — |
| CENTRAL OHIO ENDOSCOPY CENTER LLC | PICKERINGTON | — |
| CENTRAL OHIO ENDOSCOPY CENTER LLC | DUBLIN | — |
| CENTRAL OHIO ENDOSCOPY CENTER LLC | COLUMBUS | — |
| CENTRAL OHIO ENDOSCOPY CENTER LLC | COLUMBUS | — |
| CENTRAL OHIO SURGICAL INSTITUTE | NEW ALBANY | — |
| CENTRAL OHIO UROLOGY SURGERY CENTER | GAHANNA | — |
| CHARDON SURGERY CENTER | CHARDON | — |
| CINCINNATI EYE INSTITUTE | CINCINNATI | — |
| CLEVELAND EAST VASCULAR CARE LLC | BEACHWOOD | — |
| CLEVELAND EYE AND LASER SURGERY CENTER LLC | FAIRVIEW PARK | — |
| COLONOSCOPY AND ENDOSCOPY CENTER LLC | DAYTON | — |
| COLUMBUS EYE SURGERY CENTER | COLUMBUS | — |
| COLUMBUS ONE ENDOSCOPY LLC DBA HILLIARD ENDO CENTER | HILLIARD | — |
| COMPREHENSIVE SURGICAL CENTER OF GREEN LLC | GREEN | — |
| CVP SURGERY CENTER | FRANKLIN | — |
| CVP SURGERY CENTERS IVY POINTE | CINCINNATI | — |
| DAVIS EYE CENTER INC | CUYAHOGA FALLS | — |
| DAYTON EYE SURGERY CENTER | DAYTON | — |
| DIALYSIS ACCESS CENTER LLC | BOARDMAN | — |
| DIALYSIS ACCESS CENTER OF CINCINNATI INC | CINCINNATI | — |
| DIALYSIS ACCESS CENTER OF CINCINNATIINC | LIBERTY TOWNSHIP | — |
| DIGESTIVECARE INC | BEAVERCREEK | — |
| DIGESTIVE ENDOSCOPY CENTER LLC | SPRINGBORO | — |
| DIGESTIVE ENDOSCOPY CENTER LLC | KETTERING | — |
| DIGESTIVE ENDOSCOPY CENTER LLC | DAYTON | — |
| DIGESTIVE ENDOSCOPY CENTER LLC | HUBER HEIGHTS | — |
| DIGESTIVE HEALTH AND ENDOSCOPY CENTER LLC | LIMA | — |
| DIGESTIVE HEALTH CENTER | AKRON | — |
| DIGESTIVE HEALTH COMPLEXINC | ST CLAIRSVILLE | — |
| DOWNTOWN ENDOSCOPY CENTER | COLUMBUS | — |
| DUBLIN SURGERY CENTER LLC | DUBLIN | — |
| E ASC LLC DBA CINCINNATI ORTHOPEDIC SURGERY CENTER | CINCINNATI | — |
| EAST COLUMBUS SURGERY CENTER LLC | COLUMBUS | — |
| EASTWIND SURGICAL LLC | WESTERVILLE | — |
| ENDOSCOPY CENTER OF DAYTON | BEAVERCREEK | — |
| ENDOSCOPY CENTER OF DAYTON LTD | BEAVERCREEK | — |
| ENDOSCOPY CENTER OF DAYTON NORTH LLC | DAYTON | — |
| ENDOSCOPY CENTER OF NORTHERN OHIO LLC | BRUNSWICK | — |
| ERIE SHORES SURGERY CENTER LLC | SANDUSKY | — |
| EYE CENTER OF COLUMBUS LLC | COLUMBUS | — |
| EYE LASER AND SURGERY CENTER LLC | BEAVERCREEK | — |
| EYE SURGERY CENTER OF WESTERN OHIO LLC | LIMA | — |
| EYE SURGERY CENTER OF WOOSTER | WOOSTER | — |
| EYE SURGICAL CENTER LLC | CANTON | — |
| FINDLAY SURGERY CENTER | FINDLAY | — |
| FRESENIUS VASCULAR CARE CINCINNATI ASC DBA AZURA SURGERY CENTER | CINCINNATI | — |
| FRESENIUS VASCULAR CARE DAYTON ASC LLC | DAYTON | — |
| G AND G INTERNATIONAL LLC | PAINESVILLE | — |
| GASTRO CARE LLC | SPRINGFIELD | — |
| GASTROENTEROLOGY SPECIALISTS INC | CANTON | — |
| GEMINI SURGERY CENTER LLC | COLUMBUS | — |
| GI PHYSICIANS ENDOSCOPY INC | WARREN | — |
| GREATER DAYTON SURGERY CENTER | KETTERING | — |
| GREAT LAKES AMBULATORY SURGERY CENTER | MENTOR | — |
| GROVE CITY SURGERY CENTER LLC | GROVE CITY | — |
| GYPSY LANE ENDOSCOPY SUITES INC | YOUNGSTOWN | — |
| HILLTOP AMBULATORY SURGERY CENTER LLC | LYNDHURST | — |
| HINES DENTAL SURGERY CENTER LLC | COLUMBUS | — |
| HSC SURGICAL ASSOCIATES OF CINCINNATI LLC | CINCINNATI | — |
| INSIGHT SURGERY AND LASER CENTER LLC | ZANESVILLE | — |
| JOURNEY LITE OF CINCINNATI LLC | CINCINNATI | — |
| KNIGHTSBRIDGE SURGERY CENTER | COLUMBUS | — |
| KUNESH EYE SURGERY CENTER | DAYTON | — |
| LANCASTER SPECIALTY SURGERY CENTER | LANCASTER | — |
| LANCASTER SURGERY CENTER INC | LANCASTER | — |
| LEE SURGERY CENTER LLC | BOARDMAN | — |
| LHZ LTD DBA ST CLARE SURGERY CENTER | STOW | — |
| LIBERTY ENDOSCOPY CENTER | LIBERTY TOWNSHIP | — |
| LIPPY SURGERY CENTER LLC | WARREN | — |
| LORAIN AMHERST SURGERY CENTER DBA UNIVERSITY HOSPITALS AMHERST BEAVER CREEK SURGERY CENTER | AMHERST | — |
| LORAIN SURGERY CENTER LLC | LORAIN | — |
| MARIETTA SURGERY CENTER | MARIETTA | — |
| MAYFIELD SPINE SURGERY CENTER LLC | CINCINNATI | — |
| MEDINASUMMIT AMBULATORY SURGERY CENTER | MEDINA | — |
| MENTOR SURGERY CENTER LTD | MENTOR | — |
| MIAMI VALLEY AMBULATORY SURGERY CENTER LTD | DAYTON | — |
| MIDDLETOWN ENDOSCOPY ASC LLC | MIDDLETOWN | — |
| MID OHIO SURGERY CENTER | COLUMBUS | — |
| MIDWEST EYE CONSULTANTS OHIO DBA CATARACT AND LASER INSTITUTE ASC MAUMEE 352 | MAUMEE | — |
| MIDWEST EYE SURGERY CENTER | CINCINNATI | — |