Benjamin Hampel is specialized in internal medicine and infectious diseases. Besides his clinical work he has over 20 years of experience in voluntary community work in the areas of HIV and LGBTIQ+ health. Since 2018 he is the medical co-head of the Checkpoint Zurich, Switzerland biggest voluntary counselling and testing center and STI clinic. Furthermore he also founded the PrEP clinic at the University Hospital Zurich in 2017, which he is still in charge of.

Like his clinical work, his research is also focused on HIV prevention, people living with HIV, STIs and LGBTIQ+ health. He is the principal investigator of SwissPrEPared, a national, multicenter program and study, with the aim to improve the health care of people with a higher risk for HIV in Switzerland under the head of the Department of Public Health at the Epidemiology, Biostatistics and Prevention Institute at the University of Zurich. He is a member of the Swiss Federal Commission for Sexual Health and advisor on PrEP for WHO, ECDC and the Swiss Aids Federation.