| Business | Phone |
| Sofha Reference Laboratory 219 Princeton Rd, Johnson City 37601 | (423) 282-4819 |
| Spectrum 600 N State Of Franklin Rd #16, Johnson City 37604 | (423) 928-3440 |
| Clinical Education Building 325 N State Of Franklin Rd, Johnson City 37604 | (423) 439-7375 |
| Laboratory Corp Of America 402 Princeton Rd # B, Johnson City 37601 | (423) 854-9340 |