Van Aston grew up bouncing around the country with his Air Force family who eventually settled in Ogden, Utah. He earned his Bachelor of Science in Clinical Laboratory Sciences from Weber State University in Ogden. He continued his education in Atlanta, Georgia where he attended Emory University and graduated in 2011 with a Master of Medical Science degree as a Physician Assistant. At Emory he was awarded the prestigious Emory PA Heritage Award that is given to the student that best represents the mission of the program. Van began his PA career in South Georgia working in a small community health center. He remained there for two years until the call of the mountains and home was too strong to resist. He moved back to Ogden and continued his work in community health in the town where he spent his most formative years.
Van began working with people experiencing homelessness in 2015 at the Hope Clinic located inside the Lantern House Shelter in Ogden. Together with the clinic director he worked to build the clinic and its community impact. In 2022, Van joined the team at Fourth Street Clinic as the Medical Outreach Street Team (MOST) provider. In March 2023, he was named the Interim Medical Director.