Located in Sakae-cho, Kanagawa-ku, Yokohama, Iseki Clinic is a medical clinic specializing in internal medicine and gastroenterology. They provide diagnosis and treatment for gastrointestinal diseases and have performed numerous upper and lower gastrointestinal endoscopic examinations since opening. For gastroscopy, patients can choose between transnasal thin-diameter endoscopy and standard transoral endoscopy. Endoscopic mucosal resection is also performed for colorectal polypectomy and early-stage cancer. In addition to these gastroenterology specialty services, dermatology outpatient visits are available on Tuesday afternoons and Friday mornings. Thyroid and breast specialty outpatient clinics are provided by appointment only, and smoking cessation consultations are available during regular clinic hours. Other services include comprehensive health checkups, vaccinations, Yokohama City health screenings, and occupational medicine. The clinic supports English and is equipped with barrier-free facilities. Payment is by cash only. For patients with cold symptoms such as fever and cough, diagnosis and examinations are conducted in a separate room to prevent hospital-acquired infections.