| Business | Phone |
| Clinical Healthcare Laboratory 3201 Wall Blvd, Gretna 70056 | (504) 393-9524 |
| Consultant Pathology Svc 1141 Whitney Ave 3, Gretna 70056 | (504) 361-3757 |
| Laboratory Corp Of America 120 Meadowcrest St 415, Gretna 70056 | (504) 392-5691 |
| Kroll Laboratory Specialist 1111 Newton St, Gretna 70053 | (504) 361-8063 |
| Bernard A Landry 103 Terry Pkwy, Gretna 70056 | (504) 227-2236 |