Ascendant Medical Laboratory provides a comprehensive menu of diagnostic tests and excellent customer service that includes:
- STAT and core laboratory facilities
- Full-service menu of routine and specialized testing
- More than 300 clinical and speciality laboratory tests
- Board certified clinical and anatomic pathologists
- Certified medical technologists
- Accredited by CLIA, CMS and State TN
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- Fast turnaround time
- Online electronic test ordering and reporting with Ascendant LabOrder™
- Responsive and convenient courier service
- Multi-site phlebotomy services
- Specimen and shipping supplies provided
- Personal telephone and field client service support
- Quick response to your questions
- Subsidiary of Molecular Pathology Laboratory Network, Inc.
- More than 16 years of proven experience and expertise in complex testing
- A leader in medical laboratory medicine
Client Services
For more information about our test menu or services, contact client services. Representatives are available Monday-Friday from 8:30 a.m.–5:30 p.m. EST.
Phone: 865.273.1121
Toll-free: 800.615.0675
Fax: 865.273.1129
E-mail: service@ascendantlab.com
For after hours inquiries, please call 865.380.9746.
Courier Services
Courier services are available in East Tennessee for transporting specimens to Ascendant Medical Laboratory. Pick up frequency is determined by referral volume.
To arrange for STAT specimen pick-up, please call us at 865.584.0952. For out-of-state clients, we work with local courier agencies to schedule specimen pick-up. Nationwide overnight delivery is preferentially provided by DHL or FedEx.
For questions about courier services, contact client services.


