Cridge is an ACVIM and ECVIM board-certified internal medicine specialist with clinical and research interests in disorders of the exocrine pancreas. He is 1 of 3 RCVS-recognized specialists in small animal medicine (gastroenterology) worldwide. Cridge obtained his veterinary medical degree from University College Dublin before moving to the United States to pursue an internship and small animal internal medicine residency at Mississippi State University. Following residency, he joined the faculty at Michigan State University, where he is an associate professor. He has published in multiple prestigious journals and textbooks.