Northern Westchester Hospital has appointed Alexis Lorraine Grucela, M.D., an accomplished colon and rectal surgeon, as director of its Institute for Robotic and Minimally Invasive Surgery (IRMIS). She also serves as director of colorectal surgery at the hospital and practices at CareMount Medical in Westchester County. NWH’s highly credentialed surgical specialists routinely perform minimally invasive robotic surgery to…