Sinha earned his undergraduate degree at the University of California, Berkeley, and then completed medical school training at the University of Michigan, where he was inducted into the Alpha Omega Alpha Honor Society. Sinha completed his internship at BWH and went on to train in plastic surgery in the Harvard plastic surgery training program in 2014. His research interests include skeletal muscle stem cells and their implications, particularly how the skeletal muscle regenerative potential decreases with aging and how muscle stem cells can be used to treat volumetric loss. He is currently the lead investigator or co-investigator on three NIH-funded grants.