Washington Occupational Health Associates’ highly qualified team of physicians are board certified in Toxicology, Internal Medicine, and Occupational Medicine.

Adding to our experience, WOHA physicians have served on government and private expert panels to evaluate and establish workplace standards on the evaluation of chemical risks, reproductive and carcinogenic hazards from contamination and industrial production processes, and biological, chemical, and nuclear terrorism.

John Whysner, M.D., Ph.D., D.A.B.T.

John WhysnerDr. Whysner serves as Vice President of WOHA and is a Board-certified toxicologist. Dr. Whysner is an expert in the areas of toxicology, risk assessment and risk communication for chemicals found in the workplace and the environment.  He serves as a consultant to the International Agency for Research on Cancer (IARC) and the U.S. Government.   Dr. Whysner has also served as Chief of the Division of Pathology and Toxicology at the American Health Foundation.  He has authored articles and reports on PCBs, dioxins, power plant emissions, petroleum products, lead, solvents, asbestos and numerous other agents. Dr. Whysner also provides expert testimony and serves as a spokesperson to the media on issues of chemical safety.  Dr. Whysner is also Associate Clinical Professor of Environmental Sciences at the Mailman School of Public Health, Columbia University.

Here’s how our consulting services can help you:  

  • AED Services
  • Indoor Air Quality Services
  • Industrial Hygiene
  • Litigation Services