Adolescent Medicine | Current Fellows

First Year Fellows

Cassie Burley, MD, MPH
Cassie grew up in Vermont and attended Oberlin College for her undergraduate degree in neuroscience. After some time in research and public health, she attended the University of Pittsburgh for medical school before completing her pediatrics residency at the University of Colorado. Her academic interests include reducing weight stigma in healthcare, eating disorder prevention, as well as understanding the interplay of social media and human trafficking to increase teen safety online. She enjoys reading fiction, hiking, spending time on the water and with her husband and two dogs. 



Aaron Kala, MD
Aaron was born in Atlanta, GA, and moved to Memphis, TN to attend at Rhodes College for undergrad and the University of Tennessee Health Science Center for medical school. He completed his pediatric residency at Children’s Hospital of New Orleans and worked as a NICU Hospitalist before becoming an adolescent medicine fellow. His interests include medical education, mental health, contraception, and reproductive health. Outside of work, Aaron enjoys exercising regularly and spending time with his wife, two sons, and two dogs.



Michelle Woodfield, MD
Michelle is originally from Ottawa, Canada, where she completed her undergraduate degree in Nutrition. She then moved across the pond to complete medical school in Dublin, Ireland, before moving with her fiancé to New Jersey for pediatrics residency. Her academic interests include gender health, LGBTQIA+ advocacy, adolescent mental health, and health at every size/body positivity. Outside of work, she enjoys hiking and camping with her two dogs, traveling, exploring new cities, trying new foods, and painting. She is looking forward to exploring Boston and all the wonderful things it has to offer!


Second Year Fellows

Jessica Calihan, MD, MS
Jessie grew up in Rochester, NY and attended college at Brown University, where she was an American History major. She attended Columbia College of Physicians & Surgeons for medical school before completing the Internal Medicine-Pediatrics Urban Health Residency Program at Johns Hopkins Hospital. Prior to becoming an adolescent medicine fellow, Jessie completed the Boston Children’s Pediatric Addiction Fellowship. In her spare time, she enjoys spending time with her puppy Beacon and finding new places to hike, run, or ski.


Candice Mazon, MD
Born in the Philippines and raised in New Jersey, Candice has stayed loyal to the East Coast. She attended Rutgers University for her undergraduate degree, Drexel University for medical school in Philadelphia, completed her pediatric residency in Washington DC at Medstar-Georgetown, and is now exploring Boston for her fellowship. Her academic interests include intersectionality and anti-racism, reproductive justice, and LGBTQIA+ health. Outside of work, she loves to travel, do something creative, and explore the city with her husband and dog.


Roxanne Rengifo, MD, MSc
Roxanne was born and raised in Somerset, New Jersey and received her undergraduate degree at Rutgers University in New Brunswick. She attended medical school at St. George’s University, where she was able to train in the UK and completed her residency in Family Medicine at Hoboken, NY. She became interested in Adolescent Medicine through her work in HIV/STD counseling where she worked with at risk youth in STD prevention and testing. Adolescent medicine topics she is interested in include contraception, sexual health, and mental health management. Roxanne enjoys traveling, trying different cuisines and spending time with her family and dog.

Third Year Fellows

Katelin Blackburn, MD
Katelin was born in Buffalo, New York, but has called Boston home now for the past 13 years, having completed her undergraduate degree and medical school at Boston University. Her academic interests are advocacy based and include working to decrease the incidence of teen dating violence, and delivery of pediatric focused behavioral and mental healthcare training to residents and medical students, including a passion for teaching motivational interviewing. Personally, she enjoys bike riding, doing yoga, and taking her dog for long walks around the city. She is obtaining her MPH this year to learn more about engaging with community partners to innovatively deliver healthcare.


Tonya Lemonious, MD
Tonya is originally from Brooklyn, NY. She received her psychobiology degree at SUNY Binghamton University and made her way further upstate to Buffalo, NY for medical school and pediatric residency training. Tonya completed her training in Buffalo, as a chief resident where she focused on improving and establishing the pediatric residency’s advocacy curriculum, helped to create and introduce anti-racism education for the pediatric residents and served as a member of the Diversity, Inclusion and Learning Environment Committee. Adolescent topics she most enjoys include reproductive health, STI counseling/prevention, teen pregnancy prevention, and mental health management. Tonya also has a passion for working with at risk youth and currently co-leads collaborative for community education outreach at a local Boston homeless youth shelter. Last, but not least, Tonya loves to take dance classes to stay active while still having fun.