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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About Us
As of 2013, NetGain Mobile Diagnostics combines the strengths of two companies, NetGain Corporation and Mobile Diagnostics, Inc. 
Together, we operate 3 state-of-the-art occupational health clinics strategically located across East Tennessee in Oak Ridge, Knoxville, and Sevierville. 


We also offer a fleet of mobile labs and a staff of certified collectors who offer services on-site at customer locations, 24x7.


We work with employers, private individuals, and Third-Party Administrators (TPAs) to provide our clients with the services they need when and where they need them. 


Prior to the merger, NetGain Corporation supported federal government contracts for the Department of Energy and its contractors.  Learn more about our past experience and how we continue to support these efforts by clicking here.

Our Customers


Oak Ridge

Centerra Group (formerly Wackenhut)

Department of Energy

Isotek Systems



Restoration Services, Inc.

USEC/Centrus Energy


Wastren Advantage, Inc.



21st Mortgage

Home Federal Bank

Knox County:

  • HR/Risk Management

  • Schools

  • Transporation

Shoffner Mechanical

University of TN Athletics




Blalock & Sons Construction

City of Gatlinburg

City of Pigeon Forge

City of Sevierville

Fairfield/Wyndham Resorts