Ikebukuro Psychosomatic Internal Medicine Medical Oak Clinic is a clinic located in Nishi-Ikebukuro, Toshima Ward, Tokyo, providing primarily internal medicine services. In addition to general practice, they have a psychosomatic medicine outpatient department and treat mind-body ailments such as persistent fatigue, decreased concentration, gastrointestinal issues, headaches, palpitations, and sleep disorders through a holistic approach to both physical and mental aspects. They also offer online follow-up consultations and operate the Japan Eating Disorder Treatment Institute as specialized care, providing treatment focused on eating disorders and mental health consultations for returning Japanese expatriate children. The clinic offers second opinion consultations, psychological counseling rooms, and private-pay counseling services. They also provide "Sakurasaku" academic support through expert instruction. In addition to English support, the clinic is barrier-free compatible and accepts My Number health insurance cards. In terms of medical services, they provide specialized care for conditions where individuals are unable to maintain their typical health for more than two weeks, addressed through psychosomatic medicine consultations.