• Don Gurnett—Discovered measurements showing that the Earth's aurora is a source of low-frequency radio emissions. He has worked on more than 25 major spacecraft projects for NASA and specializes in experimental space plasma physics. BSE, Electrical Engineering, 1962. He has been on the faculty in the UI Department of Physics and Astronomy since 1965.
• Kenneth Culver—Part of a team that pioneerd the first use of gene therapy at the National Institutes of Health. MD, 1981.
• James Van Allen—World-famous physicist and discoverer of two radiation belts (the Van Allen Belts) that surround the Earth. MS, 1936; PhD, Physics, 1939. Emeritus Carver Professor of Physics at The University of Iowa.

Dentists

• James Bramson—Executive director of the 150,000-member American Dental Association (ADA). BS, 1976; DDS, 1979.
• Marion Francis—The creator of Crest toothpaste began his research in fluoride-strengthening, cavity-fighting agents as a graduate student at Iowa. PhD, Biochemistry, 1953.
• Bernie Machen—President of the University of Florida, the fourth largest university in the country, and former president of the University of Utah. MS, Pediatric Dentistry, 1972; PhD, Education, 1974.
• Byron McKeeby—The pitchfork-weilding man in Grant Wood's American Gothic portrait was the artist's dentist, and a UI graduate. DDS, 1894.

Doctors

• Nancy Andreasen—Psychiatrist, internationally renowned for her work on schizophrenia and creativity. MD, 1970.
• Edmund Y. Chao—He is a leading national expert in musculoskeletal joint mechanics, bone fracture fixation and repair, and artificial joint replacement in the hip, knee, and shoulder. He established the Biomechanics Research Program at the Mayo Clinic and Mayo Medical School. PhD, Mechanics and Hydraulics, 1971.
• Bruce Gantz—Internationally recognized for his work on the use of cochlear implants to restore hearing to profoundly deaf children and adults. BS, 1968; MD, 1974. MS, 1980. Current faculty member in the UI Carver College of Medicine.
• Edward Mason—Known as the "father of obesity surgery," Mason began performing gastric bypass surgery at The University of Iowa in 1966. BA, 1943; MD, 1945.
• Ignacio V. Ponseti—He perfected a non-surgical method of treating infants with clubfoot, a treatment now known as the "Ponseti method." He completed his residency certificate in orthopaedic surgery at Iowa in 1944.