John Joseph Swierzewski, D.P.M., died suddenly at the age of 49 in Beaufort, South Carolina. Born at Providence Hospital in Holyoke, Massachusetts, to Maureen and Stanley Swierzewski, M.D., John graduated from the Williston Northampton School, in Easthampton, received his Bachelor of Arts degree from the University of Massachusetts at Amherst, and his Doctor of Podiatric Medicine from the Temple University School of Podiatric Medicine, in Philadelphia. John specialized in podiatry and podiatric surgery in Holyoke, Massachusetts, at Comprehensive Foot Care Inc. and was affiliated with Baystate Medical Center, Baystate Noble Hospital, and Holyoke Medical Center. John invented an alkaloid-based foot- and skin-care treatment called All Natural pHeet Wipes to treat his life-long eczema condition, and was the founder and chief executive of pHeet Wipes seller PH Select. He was an avid golfer. John is predeceased by his mother, Maureen, and is survived by his four sons, Cian, Davin, Tagh, and Luke, his father, Stanley, his brothers Stanley ’76, Mark ’78, Paul, James and David, his sister Ann Corcoran, and numerous nieces and nephews. A Mass of Christian Burial will be at 11:00am on Monday, September 26, 2022, at Blessed Sacrament Church, 1945 Northampton Street, Holyoke, Massachusetts, with a private service to follow.