Esoterix's Client Service Center has a highly trained staff available to respond to all general client needs. Our client services staff ensures clients have prompt answers to questions or concerns on test information, specimen requirements, turnaround time, test add-ons, and patient results. Client service representatives may also direct client calls immediately to a technical or medical expert if necessary.

Client Services Center Phone: (800) 444-9111 Fax: (512) 225-1253 Hours of Operation: Monday - Friday 7:00 a.m. - 8:00 p.m. CST Saturday 8:00 a.m. - 5:00 p.m. CST

Central Billing Services Client Billing Phone: (800) 343-4407 Patient Billing Phone: (800) 845-6167 Hours of Operation: Monday - Thursday 7:00 a.m. - 5:00 p.m. CST Friday 7:00 a.m. - 4:00 p.m. CST

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