Oyagadanchai Clinic is located in Oyagadanchai, Adachi-ku, Tokyo, and primarily provides internal medicine services. Every Wednesday, the clinic features pediatricians invited from The University of Tokyo Hospital, offering a pediatric allergy outpatient clinic staffed by pediatric allergy specialists, as well as a short stature clinic led by pediatric specialists. The pediatric allergy clinic conducts medical evaluations including blood tests and, when necessary, food challenge tests for allergic conditions such as allergic rhinitis and food allergies commonly seen in childhood, operating by appointment every Wednesday. The short stature clinic identifies causes of short stature through growth chart creation, blood tests, and bone age assessment, targeting children aged 3 to pre-adolescence. Additionally, the female physician outpatient clinic led by Vice Director Masami Watanabe offers internal medicine and cardiology-focused care, along with consultations on women-specific health concerns. Employment health examinations include physical examination, blood tests, ECG, chest X-ray, urinalysis, and vision tests, with discounted pricing available from February to April. The clinic also conducts infant health checkups and various vaccinations, and is equipped with credit card and electronic payment acceptance, parking, and barrier-free facilities.