100 Union Valley Road, Suite 120

Oak Ridge, TN 37830

P: 865-220-8630

F: 865-425-1269

4605 Papermill Drive

Knoxville, TN 37909

P: 865-584-3926

F: 865-584-3645

601 Wall Street

Sevierville, TN 37862

P: 865-429-5800

F: 865-429-5840

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How we help Third Party Administrators (TPAs)


Need to find a collection site in East Tennessee?  Look no further!  We'd love to be a part of your network. 


We are a preferred provider for:


  • Quest Diagnostics (FormFox)

  • LabCorp (Drug testing and Bloodwork)


  • And many more!


We'll modify/store chain of custody forms on-site.  We'll return to you all of the paperwork you need.  We'll make sure our invoice includes the right information to streamline billing.  We'll treat your clients just like our clients!  




Client Testimonial


"As a third party administrator, I schedule off-site physicals, audios and drug screens for several companies on a regular basis and I have to tell you that from my very first call to your facility, it has been a very pleasant experience.  You scheduled the employee quickly and sent me back all the appropriate paperwork directly after completing the exam.  I have dealt with a lot of Occupational Health Facilities and I must tell you that if I could send all of my people to you at NetGain Mobile Diagnostics, I would."