Specialists

Meet the Team

Charles Cassidy

MD

Dr. Cassidy is a board-certified Family Practice physician fellowship trained in endoscopy and practicing in NE Wisconsin. He primarily provides endoscopy services at Renovo. Dr. Cassidy completed medical school at the University of California San Francisco. He completed a residency in family medicine with fellowship level training in Advanced Rural-Global Medicine and Surgery (ARMS) at John Peter Smith hospital in Fort Worth, TX, graduating in 2017. ARMS training included colonoscopy and esophagogastroduodenoscopy (EGD), as well as a broad range of surgical procedures, such as appendectomy, cholecystectomy, herniorrhaphy, and hemorrhoidectomy.

Susan Lepinski

MD

Dr. Lepinski is a board certified gastroenterologist who was born and raised in Wisconsin and has practiced mostly in the Madison and North Central WI areas of the state. She completed medical school, medicine residency, and fellowship at the University of Wisconsin. She considers it a privilege to provide patient care to the residents of WI.

Mitchell Manthey

MD

Dr. Manthey is a board certified gastroenterologist with more than 30 years of experience. He has performed over 60,000 procedures in Northeast Wisconsin. He completed medical school in Madison, his medicine residency at the University of Minnesota, and his fellowship at the Medical College of Wisconsin. “My primary goal for our procedures is a safe, thorough and comfortable examination for every patient,” he says. “I want all our patients to feel that we carefully listen to their concerns, answer their questions and provide high-quality care for them.”

Clint Rau

DDS

Dr. Rau is a board certified pediatric dentist well known to the Manitowoc community for his Young Smiles practice on Reed Ave. He conducts complex dental restorations for children requiring general anesthesia for the optimization of their dental care. He completed dental school at Marquette University in Milwaukee and his pediatric residency at Baylor College of Dentistry in Texas.

Mark Romzek

MD

Dr. Romzek is a board-certified Orthopedic Surgeon. He provides a wide range of orthopedic procedures at Renovo. He completed his training in Orthopedic Surgery at Pontiac Osteopathic Hospital, Pontiac Michigan and completed a Fellowship in Sports Orthopedic Surgery at Michigan Knee and Shoulder Institute, Auburn Hills Michigan

Dr Romzek is licensed in multiple Midwestern states and has practiced in Wisconsin for more than 15 years.