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The KeyPeople Consulting Services provide:

On-call access, 365 days a year, 24 hours a day, to senior consultants and other healthcare specialists during the time of crisis.


Michael V. Callahan

Jeffrey Gelfand

Thierry Guedj

Ronald Schouten
M.D., J.D.

Charles Swearingen


Michael V. Callahan, M.D, DTMH, MSPH. is a Command Physician with 14 years experience in international disaster and mass-casualty response operations. Board-certified in internal medicine, infectious disease and tropical medicine, Dr. Callahan is the program leader for Biothreat Detection at the Center for Integration of Medicine and Innovative Technology (CIMIT). He is an international consultant on issues ranging from CBR threat vulnerability levels, international executive safety, and infectious diseases including influenza and tuberculosis. Dr. Callahan lectures organizations and communities about medical and organizational disaster preparedness and medical treatment in remote and extreme environments. He is licensed to practice medicine in Massachusetts, Colorado and Washington.