Yamaoka Clinic, a medical corporation that has been serving the local community in Kojimachi for over 40 years, specializes in internal medicine with dedicated diabetes, thyroid, and obesity clinics, while also emphasizing comprehensive health checkups. The clinic is staffed by board-certified specialists in general internal medicine and diabetes, providing university-hospital-level medical care with same-day testing available for blood glucose, HbA1c, and thyroid function. The diabetes clinic offers early detection and effective treatment plans for patients with elevated blood glucose or HbA1c levels identified during health screenings, while the thyroid clinic supports patients suspected of thyroid conditions who experience symptoms such as palpitations, hand tremors, or fatigue. The obesity clinic (medical diet) combines dietary and exercise guidance with medication therapy to provide personalized weight loss programs, catering to patients who experience repeated weight regain or have been diagnosed with metabolic syndrome. Health checkups are available at affordable prices with results returned as early as the next business day, featuring diverse options including regular checkups, corporate screenings, and pre-employment examinations. Additionally, the clinic provides pediatric care and infant health checkups by a female pediatrician, dermatological treatment for eczema, hives, and acne, aesthetic treatments, and vaccinations. The clinic also offers English-speaking services and accepts credit cards and electronic payments.