Dr. John William Oostendorp, MD

Dr. John Oostendorp specializes in internal medicine, bringing nearly five decades of medical expertise to his practice. He earned his medical degree from the University of Michigan Medical School and has dedicated 48 years to caring for patients with a wide range of internal medicine conditions. Dr. Oostendorp is fluent in both English and Spanish, allowing him to serve diverse patient populations in his community.

Dr. Oostendorp practices at Holland Hospital and provides care across multiple locations in Holland and Zeeland, Michigan. His clinical focus includes managing complex conditions such as diabetes, blood disorders, and skin lesions. He frequently performs blood work including complete blood counts and specialized blood tests to diagnose and monitor various health conditions. Patients consistently rate Dr. Oostendorp highly, giving him an average rating of 5.0, reflecting their confidence in his compassionate and thorough approach to internal medicine care.