Watanabe Clinic is a medical clinic located in Nishikojiya, Ota Ward, Tokyo, approximately 680m north of Otorii Station on the Keikyu Haneda Line. It offers internal medicine, cardiology, gastroenterology, orthopedics, and dermatology, with the clinic director, a certified specialist of the Japanese Society of Internal Medicine, providing comprehensive care for internal medicine conditions. The clinic prioritizes listening carefully to patients before proceeding with treatment, ensuring that patients and their families receive thorough explanations to achieve understanding. Clinic hours are 9:00 AM to 12:30 PM and 4:00 PM to 7:00 PM, with the clinic closed on Thursday afternoons, Saturday afternoons, Sundays, and holidays. Fever clinics require appointments and conduct in-hospital triage to prevent infection. The clinic also provides transnasal endoscopy, Kampo (Japanese herbal medicine) treatment, and smoking cessation services. Dermatology care is provided by internal medicine physicians as primary care rather than by dermatology specialists. The facility is barrier-free and supports English. The clinic is committed to healthcare digital transformation, including free detailed receipts, online insurance verification, and electronic prescriptions, and offers health consultations and vaccination guidance through the comprehensive community care addition.