| Southern California Emergency Medical Group | Dr. Steve Shae | St. Mary Medical Center | Long Beach | |
| South Coast Emergency Medical Group | David Strumpf, MD | Santa Barbara Cottage Hospital | Santa Barbara | |
| Saint John's Emergency Medicine Specialists | William Rehor | St. John's Health Center | Santa Monica | |
| Riverside Emergency Physicians Medical Group | Chad Clark, MD | Parkview Community Hospital | Riverside | |
| Riverside Emergency Physicians Medical Group | Chad Clark | Parkview Community Hospital MC | | |
| Placentia Linda Emergency Physicians | Bryan Hoynak | Placentia Linda Hospital | Placentia | |
| Pinnacle Emergency Physicians of Bakersfield | Les Burson, MD | Bakersfield Memorial Hospital | | |
| Pinnacle Emergency Physicians at Bakersfield | Les Burson | Bakersfield Memorial Hospitals | | |
| Pacific Emergency Physicians | Roneet Lev, MD | Scripps Mercy Hospital | San Diego | |
| Newport Emergency Medical Group | Greg Super | Hoag Memorial Hospital Presbyterian | Newport Beach | |
| Napa Valley Emergency Medical Group | Andrew Nothmann | Queen of the Valley Medical Center | Napa | |
| Monterey Bay Emergency Physicians Medical Corporation | Sameer Bakhda | Community Hospital of the Monterey Peninsula | Monterey | |
| Mills Peninsula Emergency Medical Assoc., Inc. | Ram Duriseti, MD | Mills-Peninsula Medical Center | Burlingame | |
| Intercommunity Emergency Medical Group | Ian Kramer | Presbyterian Intercommunity Hospital | Whittier | |
| Emergency Specialist Physicians Med Assoc | Jorge Vournas | Little Company of Mary - Torrance | Torrance | |
| Eastern Sierra Emergency Physicians | John "Adam" Hawkins | | | |
| Culver Emergency Medical Ggroup | Steve Carney | Southern California Hospital at Culver City | Culver City | |
| Chula Vista Emergency Room Physicians | Peter Jost | Scripps Mercy Hospital Chula Vista | Chula Vista | |
| Central Coast Emergency Physicians | Brian Koch | Sierra Vista Regional Medical Center | | |
| Berkeley Emergency Medical Group | Steve Sornsin | Alta Bates Medical Center | San Ramon | |
| Antelope Valley Emergency Medicine Associates | Mike Gertz, MD | Antelope Valley Hospital | Lancaster | |
