• Union Med System
  10140 Artesia Pl
• Professional Billing Svc
  9546 Cedar St
• Preferred Medical Billing
  17415 Woodruff Ave
• Bellflower Medical Center
  17610 Bellflower Blvd
• Axion Medical Billing Co
  13731 Ibbetson Ave
• Physicians Mobile Group
  9500 Artesia Blvd