Maejima Rheumatology Internal Medicine Clinic, located in Higashiomichi, Oita City, Oita Prefecture, is an internal medicine clinic specializing in the treatment of rheumatic and connective tissue diseases, including rheumatoid arthritis. The clinic opened in October 2024, succeeding Medical Corporation Koyukai (Oribe Rheumatology Internal Medicine Clinic). Under the leadership of Dr. Keisuke Maejima, the clinic provides treatment based on the latest medical knowledge, emphasizing the pursuit of optimal treatment methods tailored to each individual patient, as rheumatic and connective tissue diseases vary in symptoms and severity from person to person. The clinic is committed to providing careful explanations about complex rheumatic and connective tissue diseases in easy-to-understand language. The medical specialty is internal medicine, with consultation hours from 8:30 AM to 12:30 PM in the morning and 2:30 PM to 5:30 PM in the afternoon, with Thursday afternoons closed. Saturday consultations are held only once a month, and the clinic is closed on Sundays and public holidays, so advance confirmation is recommended when visiting. The clinic operates primarily by appointment, requiring advance booking via internet or telephone. English support is available, and the clinic is equipped with parking facilities and barrier-free access, creating an environment accessible to a wide range of patients. As one of the centers for rheumatology care in Oita City, this medical institution aims to provide community-rooted healthcare.