Koyama Breast and Thyroid Clinic is a medical facility located in Jonan, Suwa City, Nagano Prefecture, specializing in surgery. Business hours are from 8:30 AM to 12:00 PM and from 2:00 PM to 5:00 PM, with closures on Wednesdays, Sundays, and holidays. The clinic provides parking spaces and is equipped with barrier-free accessibility. Additionally, English language support is available.