Kusumoto Naika Clinic, operated by Medical Corporation Kōtoku-kai, is a community-based internal medicine specialty clinic located in Heiwachō, Izumi City, Kagoshima Prefecture. Covering the full scope of internal medicine, the clinic addresses a wide range of health concerns—from common symptoms such as colds and fever to the management of lifestyle-related diseases and chronic conditions. Consultation hours are set from 8:30 AM to 12:30 PM in the morning and 3:00 PM to 6:00 PM in the afternoon, making it easy for patients to visit between work and daily commitments. The clinic is equipped with a parking lot, accommodating those who travel by car in areas where public transportation access is limited. With barrier-free design in place, the facility provides a safe and accessible environment for elderly patients and those with mobility challenges. The clinic is closed on Sundays and public holidays, as well as during the summer break (August 14–16) and the year-end period (December 29–31), so checking the schedule in advance is recommended. Serving Izumi City and its surrounding areas, Kusumoto Naika Clinic handles everything from routine health management to specialized internal medicine care, functioning as a medical institution that continuously supports the health of local residents.