She studied at Seattle's private Lakeside High School. She earned a degree in human biology from Stanford University in 2018 and took a year off to focus on her equestrian passion before going to medical school. She enrolled at Mount Sinai's Icahn School of Medicine. She graduated from Columbia University with her master's degree in public health on May 2023.
In January 2020, Gates announced her engagement to the renowned Egyptian equestrian Nayel Nassar. Nassar also attended Stanford University. The got married on October 16, 2021, and welcomed their first daughter, a girl named Leia, on March 6, 2023.