Sugamo Yamaguchi Internal Medicine & Diabetes Clinic is a specialized internal medicine facility located within walking distance of Sugamo Station in Toshima Ward, Tokyo. In addition to comprehensive internal medicine management, the clinic provides advanced medical care led by a director qualified as a diabetes specialist and clinical instructor. Specializing in diabetes, the clinic manages lifestyle-related diseases such as hypertension and dyslipidemia, and also treats a wide range of internal medicine conditions. Following the June 2024 medical fee revision, the clinic creates lifestyle disease treatment plans for eligible patients. The online booking system helps reduce waiting times, and telephone appointments are available for patients with fever symptoms. The clinic collaborates with advanced medical institutions such as Nihon University School of Medicine Itabashi Hospital, serving as a local primary care physician for comprehensive internal medicine services. English services are available.