Meet Our Fellows

2023 – 2025


Roshni Singh, MD

Medical School: Drexel University

Residency: Boston Medical Center Boston, MA, United States of America, ACGME Residency

Roshni is from Pleasantville, NY and attended Boston University as an undergraduate, then went to medical school at Drexel University where she was first introduced to HIV medicine. She returned to Boston University for Internal Medicine residency where she further developed an interest in Infectious Disease while on the dedicated inpatient ID service. Roshni has worked closely with faculty particularly in the area of HCV research. Her interests include HIV/viral hepatitis, general ID and health equity. When she’s not at work, she loves taking laps around Jamaica Pond, scoping out dance classes around the city, scrolling through French baking videos on Instagram or daydreaming about a good New York bagel.   


Traci Mikasa, DO, MA

Medical School: Pacific Northwest University of Health Sciences

Residency: Legacy Emanuel Internal Medicine Residency, Portland, OR.

Traci Mikasa, DO, MA is from Seattle, WA. She attended Seattle University as an undergraduate and worked in vaccine development at the Infectious Diseases Research Institute in Seattle before going on to medical school at the Pacific Northwest University of Health Sciences. Traci finished her resident in the Legacy Emanuel Internal Medicine Residency program in Portland, OR. Traci’s medical interests include HIV, Tropical Medicine, Transplant medicine, POCUS, Women’s Health, Underserved populations.  When she’s not at work, Traci loves dogs (especially her Corgi), hikes, the coast/beach, exploring new restaurants and neighborhoods, reading non-medical books, cooking/baking/grilling, sleeping in, wine/beer/liquor, Netflix binging, and online shopping.


Alyssa Bacay, DO

Medical School: University of New England College of Osteopathic Medicine

Residency: University of Connecticut

Alyssa is originally from Manchester, CT and received her undergraduate degree from Wellesley College. Her academic interests focus on HIV primary care and health equity. In her spare time she enjoys baking, discovering new music and attending concerts with her husband, walking around Jamaica Plain and trying new restaurants around the city, anything Costco/Kirkland-related, and reading novels.


2022 – 2024

Alan Chan, MD

Medical School: Florida State University College of Medicine – Orlando Campus

Residency: Boston Medical Center Boston, MA, United States of America, ACGME Residency

Alan grew up in Florida, completed his undergraduate studies at the University of Florida, medical training at Florida State University, and Internal Medicine Residency at Boston Medical Center. In medical school, he worked on assessing and expanding access to PrEP in primary care offices. In residency, he worked on integrating PrEP evaluations into the inpatient care setting. His interests include HIV primary care and medical education. On his free time, he enjoys baking and traveling.


Jemma Benson, MD

Medical School: Columbia University Vagelos College of Physicians and Surgeons

Residency: Yale New Haven Internal Medicine Residency Program, ACGME Residency

Jemma is from Massachusetts and attended Haverford College where she majored in cultural anthropology and completed a senior thesis on the intersection of gender and literacy in Nicaragua. After college, she lived in Philadelphia and worked at a nonprofit organization working to address health equity in immigrant communities. She attended medical school at Columbia University Vagelos College of Physicians and Surgeons, where she developed an orientation program focused on connecting the medical school to the surrounding community. She then completed internal medicine residency at Yale, where she did an additional year as a Chief Resident. While at Yale, she continued her involvement in immigrant health advocacy, working on a statewide campaign to expand Medicaid to undocumented minors and giving Internal Medicine Grand Rounds on the impact of the COVID-19 pandemic on undocumented communities. Her career interests are in the infectious sequelae of migration, and advocacy for immigrant and refugee populations. When she is not at work, she enjoys reading, gardening, baking, cooking, and hiking, but mostly spending time with her friends, family, and cat, Little Kitty. She is a proud attendee of the “rainiest rain show that ever rain showed” stop on Taylor Swift’s Eras Tour.


Miriam Nathan, MD

Medical School: Frank H. Netter MD School of Medicine at Quinnipiac University

Residency: University of Massachusetts, Medical School, Worcester


Katherine Anne Reifler, MD

Medical School: University of Illinois College of Medicine

Residency: Boston Medical Center Boston, MA, United States of America, ACGME Residency

Katherine grew up in Chicago, studied history of science an undergrad at Harvard University, attended medical school at the University of Illinois at Chicago, and completed an internal medicine residency at Boston Medical Center. During college, she lived and worked abroad in Nicaragua, the Dominican Republic, and Peru, and developed an interest in health in low-resource settings and migrant health care. In medical school, she worked in Kisumu, Kenya on improving HIV diagnosis in the emergency care setting. In residency, she was involved in the Refugee and Immigrant clinic and Global Health pathway. Most recently, she has worked on research and education to improve detection of and treatment for Chagas disease. Outside of the hospital she enjoys running, spending time with friends and family, and hanging out with other people’s dogs.