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Please fill out the form below to have a West Physics representative contact you to arrange for a service or product quote for your facility.

Our address and telephone numbers are:

West Physics
3825 Paces Walk SE
Suite 250
Atlanta, GA 30339

770-435-9186 • 1-866-275-WEST (9378) • FAX 770-599-2333

Office Hours: West Physics maintains liberal office hours for the convenience of our customers nationwide.


9AM – 8PM Eastern Time
8AM – 7PM Central Time
7AM – 6PM Mountain Time
6AM – 5PM Pacific Time

Closed Weekends & U.S. National Holidays

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Imendra Ranatunga, M.A., M.S., DABR

St. Louis Field Office Director & Senior Medical Physicist



Mr. Ranatunga joined West Physics after the completion of his Master’s of Science Degree in Medical Physics at Hofstra University in New York. Throughout his graduate studies, he completed two research projects entitled Investigation of Patient Dose from Computer Tomography Examinations and Mammosite Brachytherapy Dosimetry: effect of contrast and air interface on skin dose.

Before joining West Physics, Mr. Ranatunga worked as a Medical Physicist for one of the leading healthcare systems in Sri Lanka. During that time he performed quality assurance testing of diagnostic imaging systems as well as medical laser systems.

Mr. Ranatunga is originally from Colombo, Sri Lanka.


  • Master’s of Science in Medical Physics – Hofstra University
  • Master’s of Arts in Physics – Ball State University
  • Master’s of Science in Nuclear Science – University of Colombo
  • Bachelor’s of Science in Physics – University of Colombo


  • American Board of Radiology – Diagnostic Radiological Physics