Kojima Clinic Wakamatsu Kawata is an internal medicine clinic located in Kawatacho, Shinjuku Ward, Tokyo. The clinic specializes in endocrine and metabolic medicine with a focus on thyroid disorders, providing care for patients with symptoms from thyroid hormone abnormalities and those detected with neck swelling during health checkups. The clinic has experience treating thyroid diseases such as Graves' disease, Hashimoto's disease, and thyroid cancer, and care is provided by a specialist who previously served as the head of the ultrasound department. Information on parathyroid hormones and osteoporosis is also available, and explanations are provided regarding thyroid disorders and pregnancy, breastfeeding, and genetics. The clinic has created a treatment space where patients can feel at ease and relax, placing emphasis on reducing wait times and providing attentive care. Medical cooperation with specialized facilities is also implemented, and the clinic offers English support, accepts credit cards and electronic payments, and features barrier-free facilities.