10/12/2026
Monday with MedTreks! We are so pumped to have Dr. Harker and Dr. Martinez join as faculty on our Bhutan trip starting TODAY!! They took the reins on our first IWLS course in Antarctica this past February - and we are so stoked to have them part of our faculty family!
More on Dr. Harker and Dr. Martinez!
Dr. Donald Mario Robert Harker – Lead Faculty
Dr. Harker is a Family Medicine physician with fellowship training in Wilderness and Austere Medicine from the University of Nevada, Reno. His experience includes providing medical care at Great Basin National Park, training search and rescue personnel, and supporting international expeditions in Nepal. He currently practices as a hospitalist at Sierra Medical Center and continues to combine his love of the outdoors with wilderness and expedition medicine education.
Dr. Bridget Martinez – Faculty
Dr. Martinez is a physician-scientist, researcher, and medical innovator with extensive experience in global health, biomedical research, and medical technology. With nearly 100 peer-reviewed publications and five medical books, her work spans aging, neurodegenerative diseases, and medical device development. Her international research experience and passion for advancing medicine bring a unique perspective to the MedTreks educational experience.