Kamaya Clinic is an internal medicine clinic located in Kamiyoshita-higashi, Fujiyoshida City, Yamanashi Prefecture, which opened in September 2022. A physician with experience as a member of the Gastroenterology Department at Jikei University School of Medicine serves as the director, fulfilling the role of a primary care physician. The medical department is limited to internal medicine, specializing in the diagnosis and treatment of gastrointestinal diseases. Upper gastrointestinal endoscopy and colonoscopy are performed, covering general internal medicine conditions such as hypertension, hyperlipidemia, diabetes, allergic diseases, and asthma. Clinic hours are 9:00-12:00 and 15:00-18:00 from Tuesday to Friday, and 9:00-12:00 on Saturdays. The clinic is closed on Mondays, Sundays, and holidays. New patients can book online, and same-day appointments are available by visiting the clinic to secure a slot. The clinic promotes healthcare DX, implementing online billing and online eligibility verification systems to encourage the use of My Number insurance cards. English services are available, and credit cards and electronic payments are accepted. Parking and barrier-free facilities are also provided.