Hanazono Internal Medicine Clinic, located in Hanazono, Otaru City, Hokkaido, is a clinic established in 2024 specializing in general internal medicine, cardiology, and gastroenterology. Director Dr. Kazuhiro Koyanagawa holds board certification from the Japanese Circulation Society and has built his expertise as a cardiologist at several hospitals in Hokkaido, including Hokkaido University Hospital, Sapporo City Hospital, and Otaru Kyokai Hospital. The clinic emphasizes its role as a primary care provider for the local community, featuring a treatment style that involves carefully listening to each patient, thoroughly explaining the necessity of examinations and treatments, and then determining the treatment approach together. The clinic features calm interior design with a sea motif, creating a relaxing atmosphere that is easy to visit. In addition to general internal medicine, the clinic offers health checkups, comprehensive medical examinations, vaccinations, diabetes management (through partnerships), and treatment for sleep apnea syndrome, responding to a wide range of health consultations. The clinic also focuses on infection control measures, continuously working to prevent hospital-acquired infections through the use of medical masks and goggles, thorough disinfection and sterilization of instruments, and installation of air purifiers. English service is available, and the clinic accepts credit cards and electronic payments. Parking and barrier-free facilities are also provided.