| Business | Phone |
| Unilab Corp 8135 Painter Ave # 104, Whittier 90602 | (562) 789-1346 |
| St Main Diagnostic 6709 Greenleaf Ave, Whittier 90601 | (562) 693-5300 |
| C-Ton Laboratories 7727 Painter Ave, Whittier 90602 | (562) 945-1220 |
| Unilab Corp 12535 Washington Blvd, Whittier 90602 | (562) 945-4999 |