| Business | Phone |
| American Medical Diagnostic 1623 E Edinger Ave, Santa Ana 92705 | (714) 648-0261 |
| Bio-Science Medico Lab Svc 2740 S Bristol St # 216, Santa Ana 92704 | (714) 751-1335 |
| Colwell Clinical Laboratories 1125 E 17th St # N156, Santa Ana 92701 | (714) 834-1872 |
| Spine & Orthopedic Assoc 1125 E 17th St # W120, Santa Ana 92701 | (714) 564-9889 |