| ACADIANA HEALTHCARE OF OKLAHOMA, INC. | Organization | STROUD |
| ACADIANA HEALTHCARE OF OKLAHOMA, INC. | Organization | TISHOMINGO |
| ACADIANA HEALTHCARE OF OKLAHOMA, INC. | Organization | ANADARKO |
| ACADIANA HEALTHCARE OF OKLAHOMA, INC. | Organization | SEMINOLE |
| ACADIANA HEALTHCARE OF OKLAHOMA, INC. | Organization | PRAGUE |
| ALVA HOSPITAL AUTHORITY | Organization | ALVA |
| ARBUCKLE MEMORIAL HOSPITAL | Organization | SULPHUR |
| ATOKA COUNTY HEALTHCARE AUTHORITY | Organization | ATOKA |
| BEAVER COUNTY MEMORIAL HOSPITAL | Organization | BEAVER |
| BLACKHAWK MANGUM LLC | Organization | MANGUM |
| BLACKHAWK MANGUM, LLC | Organization | GRANITE |
| CAH ACQUISITION COMPANY 12 LLC | Organization | FAIRFAX |
| CAH ACQUISITION COMPANY 16 LLC | Organization | STIGLER |
| CAH ACQUISITION COMPANY 4 INC | Organization | DRUMRIGHT |
| CAH ACQUISITION COMPANY 9, LLC | Organization | SEILING |
| CARE COMMUNICATIONS LLC | Organization | TULSA |
| CARNEGIE TRI-COUNTY MUNICIPAL HOSPITAL MANAGEMENT, INC. | Organization | CARNEGIE |
| CIMARRON MEMORIAL HOSPITAL AND NURSING HOME | Organization | BOISE CITY |
| CLEVELAND AREA HOSPITAL HOLDINGS, INC. | Organization | CLEVELAND |
| COAL COUNTY GENERAL HOSPITAL | Organization | COALGATE |
| CORDELL HOSPITAL AUTHORITY | Organization | CORDELL |
| CORDELL HOSPITAL AUTHORITY 0189 | Organization | CORDELL |
| CORDELL MEMORIAL HOSPITAL 0189 | Organization | CORDELL |
| CREEK NATION HOSPITAL & CLINICS | Organization | OKEMAH |
| DRUMRIGHT COMMUNITY HOSPITAL LLC | Organization | DRUMRIGHT |
| DUNCAN REGIONAL HOSPITAL INC | Organization | WAURIKA |
| DUNCAN REGIONAL HOSPITAL INC | Organization | WAURIKA |
| FAIRFAX HEALTHCARE PROPERTIES,LLC | Organization | FAIRFAX |
| FAIRVIEW REGIONAL MEDICAL CENTER AUTHORITY | Organization | FAIRVIEW |
| FAIRVIEW REGIONAL MEDICAL CENTER AUTHORITY | Organization | FAIRVIEW |
| HASKELL REGIONAL HOSPITAL, INC. | Organization | STIGLER |
| HASKELL REGIONAL HOSPITAL, INC. | Organization | STIGLER |
| HEALDTON MUNICIPAL HOSPITAL | Organization | HEALDTON |
| HOLDENVILLE HOSPITAL AUTHORITY | Organization | HOLDENVILLE |
| JACKSON COUNTY MEMORIAL HOSPITAL AUTHORITY | Organization | HOLLIS |
| JACKSON COUNTY MEMORIAL HOSPITAL AUTHORITY | Organization | HOLLIS |
| JANE PHILLIPS NOWATA HEALTH CENTER | Organization | NOWATA |
| JEFFERSON COUNTY HEALTHCARE AUTHORITY | Organization | WAURIKA |
| JEFFERSON COUNTY HEALTHCARE AUTHORITY | Organization | WAURIKA |
| KINGFISHER REGIONAL HOSPITAL | Organization | KINGFISHER |
| LEFLORE COUNTY HOSPITAL AUTHORITY | Organization | POTEAU |
| LOGAN HOSPITAL AND MEDICAL CENTER AUTHORITY | Organization | GUTHRIE |
| LOVE COUNTY HEALTH CENTER | Organization | MARIETTA |
| LOVE COUNTY HEALTH CENTER | Organization | MARIETTA |
| MANGUM CITY HOSPITAL AUTHORITY | Organization | MANGUM |
| MARSHALL COUNTY HMA, LLC | Organization | MADILL |
| MCCURTAIN MEMORIAL MEDICAL MANAGEMENT, INC. | Organization | IDABEL |
| MEMORIAL HOSPITAL OF TEXAS COUNTY AUTHORITY | Organization | GUYMON |
| MERCY HOSPITAL HEALDTON, INC | Organization | HEALDTON |
| MERCY HOSPITAL HEALDTON, INC. | Organization | HEALDTON |
| MERCY HOSPITAL KINGFISHER, INC | Organization | KINGFISHER |
| MERCY HOSPITAL LOGAN COUNTY INC | Organization | GUTHRIE |
| MERCY HOSPITAL TISHOMINGO, INC. | Organization | TISHOMINGO |
| MERCY HOSPITAL WATONGA INC | Organization | WATONGA |
| MERCY HOSPITAL WATONGA, INC. | Organization | WATONGA |
| NEWMAN MEMORIAL HOSPITAL, INC | Organization | SHATTUCK |
| OKEENE MUNICIPAL HOSPITAL AND SCHALLMO AUTHORITY | Organization | OKEENE |
| PAWHUSKA HOSPITAL, INC. | Organization | PAWHUSKA |
| PAWHUSKA HOSPITAL, INC. | Organization | PAWHUSKA |
| PHYSICANS HOSPITAL IN ANADARKO | Organization | ANADARKO |