Our Medical Team

We are proud to welcome the following physicians to the Grand Haven Center team.

Click the clinical services on the left to view information about the Grand Haven Center’s medical team for that service:


Robert Bischoff, DO, is a board-certified physician specializing in gastroenterology. Dr. Bischoff earned his medical degree from Lake Erie College of Osteopathic Medicine in Greensburg, Pennsylvania. He completed his internal medicine residency and his gastroenterology fellowship at Beaumont Farmington Hills Hospital in Farmington Hills, Michigan. His clinical interests include general gastroenterology and inflammatory bowel disease.

Nino Soave, DO

Nino Soave, DO, MBA, is a board-certified gastroenterologist. Dr. Soave earned his medical degree from Michigan State University College of Osteopathic Medicine in East Lansing and completed his internal medicine residency at Pontiac Osteopathic Hospital in Pontiac, Michigan. He completed his gastroenterology fellowship at St. John Providence Hospital in Southfield, Michigan. Dr. Soave’s clinical interests include weight loss, swallowing difficulties, reflux and high quality screening colonoscopy.

Katherine Weichhand, RN, MSN, NP, is a certified nurse practitioner. She earned her bachelor’s degree in nursing from Western Michigan University in Kalamazoo, and her master’s degree in nursing from Michigan State University in East Lansing. Katherine is a member of the Michigan Council of Nurse Practitioners and the American Gastroenterological Association.