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Pediatric Chief Residents

chief resident

Johni Armstrong, MD

Bio
Dr. Armstrong has lived in Tennessee her entire life and was raised in Dyersburg, TN. She attended Lee University in Cleveland, TN for a BS in Biology and attended medical school at UTHSC in Memphis. During her college years, she worked at a Boys and Girls Club where she found  that she had a passion for working with kids. Outside of medicine, she enjoys baking, reading, trying new restaurants with her boyfriend, and exercising.
chief resident

Britt Bolin, DO

Bio
Dr. Bolin grew up in Lawrenceburg, TN and attended UT-Chattanooga (go Mocs!) for her undergraduate degree where she received a BS in Pre-Professional Biology and minors in Spanish and Religious studies. After graduation, she moved to Nashville to be closer to home and scribed for a year. She then moved to South Carolina for medical school and attended Edward Via College of Osteopathic Medicine. She is happy to be back home in her home state of Tennessee and excited to explore Memphis. In her free time, she can be found trying restaurants around town, working out, or hanging out with her cat, Binx, while watching TV or reading. She is excited to continue her training at Le Bonheur.
chief resident

Kitty Foos, MD

Bio
Dr. Foos was born and raised in Albuquerque, NM. She comes to Memphis as a double-Lobo after attending the University of Ne Mexico for both undergraduate and medical school. She majored in Biology and Spanish with time spent in Ecuador and Spain. A gymnast since age 4, she loves any chance to be active whether in a CrossFit class or handstanding in front of travel landmarks. She can’t wait to explore the Memphis food scene, catch some Grizzlies and Redbirds games, and wander the city with her dog, Adobe.
Jul 10, 2026