| Business | Phone |
| Diamond Reference 841 W Valley Blvd # 102, Alhambra 91803 | (626) 570-1013 |
| Unicare Laboratory Inc 2835 W Valley Blvd, Alhambra 91803 | (626) 588-2868 |
| Sun Medical Labs Inc 1048 S Garfield Ave # 302, Alhambra 91801 | (626) 293-1690 |
| Unilab Corp 925 S Garfield Ave, Alhambra 91801 | (626) 282-5797 |
| Unilab Quest Diagnostics Inc 1 W Hellman Ave, Alhambra 91803 | (626) 288-1750 |