Founded in 1994 by Dr. Lawrence D. Dorr, Operation Walk surgeons, nurses and health professionals have operated on more than 3,000 patients in Russia, Cuba, Nepal, China, the Philippines, Nicaragua, Panama, Mexico, El Salvador, India, Ecuador, Peru and the United States.

Operation Walk Maryland was established in 2007 by Harpal S. Khanuja, MD and Maria Khanuja, CRNP and is supported by a dedicated team of colleagues and volunteers.