Joe Butterfield is AMSRO's President and hails from Rochester, Minnesota. He earned his undergraduate degree at Tufts University and his medical degree from the American University of Antigua College of Medicine in 2015. Recreational diving during medical school in the Caribbean sparked his interest in human health and performance in extreme environments. He first learned about aerospace medicine at a Sigma Xi lecture on scuba diving hosted by Mayo Clinic's department of Occupational, Preventive, and Aerospace Medicine. Since joining AMSRO in 2012, Joe has completed the NASA JSC Aerospace Medicine Clerkship (2013), the NSBRI Summer Apprenticeship (2014), the NASA Space Radiation Summer School (2015), and PASM (2016), and has served as an officer in several roles. He is an AsMA Associate Fellow. After medical school, he worked as an EMT-Basic and then a Paramedic before becoming a Physician Associate, the role he works in today. He is also a graduate student in Microbiology and Cell Science at the University of Florida. His aerospace interests include radiation protection, human physiology, and environmental control and life support systems. He is especially interested in administration and in building more training opportunities for physicians, physician associates, and allied health professionals. Outside of medicine, he enjoys scuba diving and hiking in Colorado.

Ganeev Singh is AMSRO's President-Elect and calls San Diego, California home. After earning an undergraduate degree at UCLA, Ganeev graduated from Tufts University School of Medicine in 2023 and now serves as Chief Medical Resident at Scripps Mercy Hospital San Diego. Ganeev has been an AsMA and AMSRO member since 2021 and has completed PASM, the NASA Johnson Space Center and Kennedy Space Center Aerospace Medicine Clerkships, a Virgin Galactic rotation, and a hyperbaric medicine rotation. Ganeev is working toward a career as a flight surgeon. Outside of medicine, Ganeev enjoys scuba diving

Stephanie Smith is AMSRO's Secretary and a medical student at the University of Minnesota (Class of 2028). Originally from Loretto, Minnesota, she earned bachelor's degrees in International Economics and Spanish from the University of St. Thomas. Medicine is her second career. She began in corporate business consulting before moving into healthcare, and along the way she worked as an EMT, an emergency department scribe, and a clinical research assistant. Steph first learned about aerospace medicine as a pre-medical student. She joined AMSRO during her first year of medical school, when she founded her university's Aerospace Medicine Interest Group. As Secretary, she hopes to foster connection, collaboration, and support within the AMSRO community. Beyond aerospace medicine, she is passionate about global health research, particularly austere medicine and improving access to and quality of care in high-altitude regions. In her free time, she enjoys climbing, hiking, backpacking, and learning Spanish.

Abhijay Murugesan is AMSRO's Treasurer and Membership Coordinator. He is a PGY-1 resident in Emergency Medicine/Aerospace Medicine at the University of Texas Medical Branch. A native of Yuma, Arizona, he earned a bachelor's in Public Health from the University of Arizona Zuckerman College of Public Health and a Master's in Healthcare Management from the Eller College of Management. He received his MD from the University of Arizona College of Medicine in 2026. He has been an EMT since 2017 and a SCUBA Open Water Diver since 2016. Since joining AMSRO in 2024, he has completed the Virgin Galactic Aerospace Medicine Clerkship (2025) and the NASA Kennedy Space Center Aerospace Medicine Clerkship (2026), and he attended the AsMA-UHMS conference in both 2025 and 2026. His interests include spaceport operations, rescue and recovery operations, and remote physiological monitoring. He plans to pursue a career as an operational flight surgeon and EMS medical director. Off duty, he enjoys tennis, pickleball, photography, and spoiling his five-year-old toy poodle, Leila.

Aaron Gephart is AMSRO's Parliamentarian and Historian. Originally from Bartlett, Illinois, he attended the University of Illinois at Urbana-Champaign and graduated from Chicago College of Osteopathic Medicine in 2026. He is currently a PGY-1 in Internal Medicine at the University of Illinois Chicago. His aerospace interests sit at the intersection of infectious disease and aerospace medicine, specifically preventing infections during long-duration spaceflight. Aaron has been an AsMA member since 2020 and completed PASM in 2025. He plans to practice as a hospitalist and hopes to eventually serve as a flight surgeon for NASA or a commercial space company.

Sarah Ditelberg is AMSRO's Chief Editor and a medical student at Loyola University Chicago Stritch School of Medicine (Class of 2027). Originally from Boston, Massachusetts, she completed her undergraduate studies at UMass Amherst. Since discovering aerospace medicine and joining AMSRO in 2023, she has helped evaluate venoconstrictive thigh cuffs, served as AMSRO's Midwest Regional Lead, and founded Beyond Nominal, AMSRO's podcast. She is a member of Women in Aerospace Medicine (WAM) and completed PASM in July 2026. Her interests span the field. She is particularly interested in how humans physiologically respond to and adapt in isolated, confined, and extreme environments, and lately she has been learning more about the polar environment. Fun fact: after years of singing and playing other instruments, she recently picked up the electric guitar.

Courtney Dodds is AMSRO's Webmaster. She designs and maintains the organization's website and manages its social media accounts. Originally from Washington Court House, Ohio, she earned a BS in Exercise Science with a minor in Fine Arts from the University of Cincinnati. She is now an OMS-III at Ohio University Heritage College of Osteopathic Medicine, Dublin campus (Class of 2028). Court's interests sit at the intersection of Physical Medicine & Rehabilitation and aerospace medicine, particularly return-to-Earth rehabilitation and countermeasures for disuse atrophy. She plans to pursue a career in PM&R, with the goal of helping raise the specialty's visibility in the space medicine community. Her background in the arts shapes how she approaches both medicine and AMSRO's digital presence. Outside of medicine, she works as a freelance photographer and certified personal trainer, and she enjoys ceramics, videography, and strength training.

Sam Stephenson is AMSRO's RAM Representative. He is a PGY-4 in the combined Internal Medicine/Aerospace Medicine residency at the University of Texas Medical Branch, where he is a current Resident in Aerospace Medicine. A native of Culpeper, Virginia, he completed his undergraduate studies at the University of Virginia and earned his medical degree from Eastern Virginia Medical School in 2023. His interests include G-tolerance, altitude medicine, hyperbaric medicine, the Neutral Buoyancy Laboratory, and extreme environment and wilderness medicine. Sam plans to work as a flight surgeon, ideally in medical operations, with either NASA or a commercial space company. Outside of medicine, he enjoys running, triathlons, skiing, hiking, and simply being outdoors.

Sabrina Ginsburg is AMSRO’s Military Representative and a Captain in the United States Air Force. Originally from Lake Worth, Florida, she earned her undergraduate degree from the University of Miami in 2021 and her medical degree from the University of Miami in 2025. She is currently a PGY-2 Emergency Medicine resident at UC Davis. Her aerospace medicine interests include the use of ultrasound in microgravity and the risk of urosepsis in astronauts. Sabrina completed the NASA Kennedy Space Center Aerospace Medicine Clerkship in January 2025 and has published research on mitigating fluid shifts in microgravity simulation. After completing her military service, she plans to pursue an aerospace medicine fellowship. Outside of medicine, she enjoys paddleboarding, HIIT workouts, reading, and New York Times games.