Dr. Morrissey grew up in London, England, and earned her veterinary medicine degree from the Royal Veterinary College in 2016. She completed an internship at a specialty hospital in London, where she then worked as an emergency doctor.

Following this, she undertook a rotating internship in small animal medicine and surgery at the Royal Veterinary College before relocating to Massachusetts for a surgery specialty internship. Dr. Morrissey then completed her small animal surgery residency at the University of Georgia along with a master's degree in comparative biomedical sciences.

Dr. Morrissey is excited to call San Francisco her new home, where she lives with her husband and their pets—a lemon beagle named Quincy and a cat named Wonky. She enjoys all areas of surgery and has a particular interest in minimally invasive surgery for both soft tissue and orthopedic procedures. She enjoys working closely with patients and their families to provide the highest quality care. Outside of work, Dr. Morrissey enjoys hot yoga classes, trying new restaurants, and spending time outdoors.