| 120 SPALDING PARTNERS, LLC | Organization | SANTA BARBARA |
| 120 SPALDING SURGERY CENTER, LLC | Organization | BEVERLY HILLS |
| 15TH STREET SURGICAL CENTER, INC. | Organization | LANCASTER |
| 2001 SURGERY CENTER, LLC | Organization | SANTA MONICA |
| 20TH STREET SURGERY CENTER, LLC | Organization | SANTA MONICA |
| 2121 SURGERY CENTER LIMITED PARTNERSHIP | Organization | SANTA MONICA |
| 29 PALMS SURGERY CENTER INCORPORATED | Organization | TWENTYNINE PALMS |
| 436 AESTHETIC SURGERY CENTRE, INC. | Organization | BEVERLY HILLS |
| 436 BEVERLY HILLS, LLC | Organization | BEVERLY HILLS |
| 481 ASC PROJECT LLC | Organization | OAKLAND |
| 4TH STREET LASER & SURGERY CENTER INC | Organization | SANTA ROSA |
| 606 SARATOGA AVE LLC | Organization | SAN JOSE |
| 625 NORTH A STREET OXNARD SURGERY CENTER, LLC | Organization | OXNARD |
| 90210 SURGERY CENTER | Organization | BEVERLY HILLS |
| 90210 SURGERY MEDICAL CENTER, LLC | Organization | BEVERLY HILLS |
| 90210 SURGICAL ASSOCIATES LLC | Organization | BEVERLY HILLS |
| 9201 SUNSET SURGERY CENTER, INC. | Organization | LOS ANGELES |
| 92270 SURGERY CENTER | Organization | RANCHO MIRAGE |
| A & C SURGERY CENTER, LLC | Organization | ENCINO |
| A&A SURGERY CENTER | Organization | VICTORVILLE |
| A&M SURGERY CENTER, INC. | Organization | COLTON |
| AALPHA SURGICAL CENTER INC | Organization | CULVER CITY |
| ABDALLAH ZAKI, M.D., INC. | Organization | MISSION HILLS |
| ABJ SURGERY CENTER, INC. | Organization | SAN MATEO |
| ABROMS DOUGHERTY VISION ASC LLC | Organization | SAN LUIS OBISPO |
| ACACIO SURGERY CENTER, INC. | Organization | LAGUNA NIGUEL |
| ACE ENDOSCOPY AND SURGERY CENTER | Organization | RIALTO |
| ADDISON ASC LLC | Organization | SHERMAN OAKS |
| ADIL NAVID | Individual | BEVERLY HILLS |
| ADMIRALTY SURGERY CENTER, INC | Organization | MARINA DEL REY |
| ADVANCE OC SURGICAL INC. | Organization | SANTA ANA |
| ADVANCED AAJ CARDIOVASCULAR SURGICAL CENTER INC | Organization | VISALIA |
| ADVANCED AMBULATORY SURGERY CENTER | Organization | LOS BANOS |
| ADVANCED AMBULATORY SURGERY CENTER, LLC | Organization | REDLANDS |
| ADVANCED CARE MANAGEMENT, INC. | Organization | FRESNO |
| ADVANCED DERMATOLOGY SURGERY CENTER, INC | Organization | FRESNO |
| ADVANCED DIAGNOSTIC AND SURGICAL CENTER INC. | Organization | ALHAMBRA |
| ADVANCED DIGESTIVE CENTER OF SOUTHERN CALIFORNIA LLC | Organization | THOUSAND OAKS |
| ADVANCED ENDOSCOPY AND PAIN CENTER LLC | Organization | LANCASTER |
| ADVANCED EYE MEDICAL GROUP A PROFESSIONAL CORPORATION | Organization | MISSION VIEJO |
| ADVANCED EYE SURGERY CENTER, LLC | Organization | CHICO |
| ADVANCED GASTROINTESTINAL ENDOSCOPY LLC | Organization | LOS ANGELES |
| ADVANCED HEALTHCARE INSTITUTE | Organization | LOS ANGELES |
| ADVANCED INTERVENTIONAL SURGICAL CENTER | Organization | FREMONT |
| ADVANCED MEDICAL SURGERY CENTER A MEDICAL CORPORATION | Organization | SALINAS |
| ADVANCED MULTISPECIALTY SURGERY CENTER, LLC | Organization | LOS ANGELES |
| ADVANCED PAIN CARE LLC | Organization | RANCHO PALOS VERDES |
| ADVANCED PAIN CENTER, INC. | Organization | ENCINO |
| ADVANCED PAIN MANAGEMENT | Organization | RANCHO MIRAGE |
| ADVANCED PAIN SURGICAL CENTER INC | Organization | WEST HILLS |
| ADVANCED SKINCARE SURGERY CENTER | Organization | NEWPORT BEACH |
| ADVANCED SPECIALTY SURGICAL CENTER, LLC | Organization | OXNARD |
| ADVANCED SURGERY CENTER OF BEVERLY HILLS, LLC | Organization | LOS ANGELES |
| ADVANCED SURGERY INSTITUTE, LLC | Organization | SANTA ROSA |
| ADVANCED SURGICAL CENTER | Organization | PASADENA |
| ADVANCED SURGICAL CENTER OF BEVERLY HILLS LLC | Organization | BEVERLY HILLS |
| ADVANCED SURGICAL CENTER OF FOOTHILL RANCH LLC | Organization | FOOTHILL RANCH |
| ADVANCED SURGICAL CENTER OF NEWPORT BEACH, LLC | Organization | NEWPORT BEACH |
| ADVANCED SURGICAL CENTER OF TORRANCE, LLC | Organization | TORRANCE |
| ADVANCED SURGICAL CTR OF NEWPORT BEACH | Organization | NEWPORT BEACH |