| 314 SURGERY CENTER LLC | Organization | SAINT LOUIS |
| 32ND STREET SURGERY CENTER, LLC | Organization | JOPLIN |
| ADVANCED AMBULATORY SURGICAL CARE, LP | Organization | CREVE COEUR |
| ADVANCED ENDOSCOPY CENTER LLC | Organization | CREVE COEUR |
| ADVANCED HEALTHCARE SURGICAL CENTER, LLC | Organization | POPLAR BLUFF |
| ADVANCED SURGERY CENTER LLC | Organization | SAINT LOUIS |
| ADVANCED SURGICAL CARE OF ST. LOUIS, LLC | Organization | FLORISSANT |
| ADVANCED SURGICAL CENTER OF SUNSET HILLS LLC | Organization | SAINT LOUIS |
| APOLLO AMBULATORY SURGERY CENTER, LLC | Organization | SAINT LOUIS |
| ARNOLD SURGERY CENTER | Organization | SPRINGFIELD |
| AUBURN SURGERY CENTER INC | Organization | CAPE GIRARDEAU |
| AUBURN SURGERY CENTER INC. | Organization | CAPE GIRARDEAU |
| BALLAS OUTPATIENT SURGERY CENTER LP | Organization | SAINT LOUIS |
| BLACK RIVER AMBULATORY SURGERY CENTER, LLC | Organization | POPLAR BLUFF |
| BLUE RIDGE SURGICAL CENTER, LLC | Organization | KANSAS CITY |
| BRADFORD PLACE SURGERY AND LASER CENTER, LLC | Organization | SPRINGFIELD |
| BRIARCLIFF AMBULATORY SURGERY CENTER LP | Organization | KANSAS CITY |
| C. REX WITHERSPOON SURGERY CENTER INC | Organization | SPRINGFIELD |
| CAPE GIRARDEAU OUTPATIENT SURGERY CENTER | Organization | CAPE GIRARDEAU |
| CEDAR OAKS SURGERY CENTER LLC | Organization | WARRENSBURG |
| CENTER FOR SURGICAL EXCELLENCE, LLC | Organization | TOWN AND COUNTRY |
| CENTER FOR SURGICAL SPECIALTIES, PC | Organization | MACON |
| CENTER FOR UROLOGIC SURGERY LLC | Organization | SAINT LOUIS |
| CENTRAL WEST END ENDOSCOPY LLC | Organization | ST. LOUIS |
| CENTRIC AMBULATORY SURGERY CENTER LLC | Organization | MOBERLY |
| CHARLES ALLEN, NURSE PRACTITIONER | Individual | KANSAS CITY |
| CHESTERFIELD AMBULATORY SURGERY CENTER LP | Organization | CHESTERFIELD |
| CHESTERFIELD ASC, LLC | Organization | CHESTERFIELD |
| CHESTERFIELD SPINE CENTER, LLC | Organization | TOWN AND COUNTRY |
| CLARKE SURGICAL CENTER, L.L.C. | Organization | SPRINGFIELD |
| CMMP SURGICAL CENTER LLC | Organization | JEFFERSON CITY |
| COLUMBIA ENDOSCOPY CENTER, LLC | Organization | COLUMBIA |
| COLUMBIA MUSCULOSKELETAL SURGERY CNTR LLC | Organization | COLUMBIA |
| COMMONS SOUTH SURGERY CENTER, LLC | Organization | SAINT LOUIS |
| CREEKWOOD SURGERY CENTER, LP | Organization | KANSAS CITY |
| CREVE COEUR SURGERY CENTER LLC | Organization | CREVE COEUR |
| CREVE COEUR SURGERY CENTER, LLC | Organization | CREVE COEUR |
| CRYSTAL CITIES SURGERY CENTER | Organization | FESTUS |
| CSA SURGICAL CENTER LLC | Organization | COLUMBIA |
| DES PERES EYE SURGERY CENTER, LLC | Organization | SAINT LOUIS |
| DISCOVER EYE SURGERY CENTER, LLC | Organization | INDEPENDENCE |
| DOCTORS PARK SURGERY INC | Organization | CAPE GIRARDEAU |
| ELITE AMBULATORY SURGERY CENTER, LLC | Organization | SAINT LOUIS |
| ELITE ANTI-AGING AND VEIN CLINIC | Organization | KANSAS CITY |
| EVEXIAS METRITA - COLUMBIA LLC | Organization | COLUMBIA |
| EYE SURGERY CENTER OF WARRENSBURG INC | Organization | WARRENSBURG |
| EYE SURGERY CENTER-NORTHLAND LLC | Organization | KANSAS CITY |
| EYE SURGICAL SERVICES LLC | Organization | SAINT LOUIS |
| FOUR STATES SURGERY CENTER, PC | Organization | JOPLIN |
| FREEMAN SURGICAL CENTER LLC | Organization | JOPLIN |
| FRESENIUS VASCULAR CARE ST LOUIS ASC LLC | Organization | FLORISSANT |
| FRONTENAC AMBULATORY SURGERY & SPINE CARE CENTER LP | Organization | FRONTENAC |
| FSC INVESTMENTS, LLC | Organization | FLORISSANT |
| G A ENDOSCOPY CENTER, LLC | Organization | CAPE GIRARDEAU |
| G I D HOLDINGS, INC | Organization | KANSAS CITY |
| GATEWAY ENDOSCOPY CENTER, LP | Organization | SAINT LOUIS |
| GREEN HILLS ENDOSCOPY, LLC | Organization | KANSAS CITY |
| HEALTHMARK BALLAS LLC | Organization | SAINT LOUIS |
| HEALTHMARK BRENTWOOD LLC | Organization | SAINT LOUIS |
| HEALTHMARK GRAVOIS LLC | Organization | SAINT LOUIS |