Taishikai Medical Corporation Onishi Hospital, located in Omorinaka, Ota Ward, Tokyo, is a medical facility providing internal medicine, dermatology, comprehensive blood screening, and proctology services. Established in 1892 in Asakusa, Tokyo, this historic facility moved to its current location in 1930 and has been providing community-focused medical care since. Clinic hours are Monday to Friday 9:30 AM to 12:00 PM and Monday/Wednesday/Friday 3:00 PM to 6:00 PM, and Saturday 9:00 AM to 12:00 PM, closed on Sundays and holidays. The medical team includes Director Dr. Mayumi Onishi, a graduate of University of Tsukuba School of Medicine and a board-certified specialist in internal medicine and hematology by the Japanese Society of Internal Medicine and the Japanese Society of Hematology. In dermatology, Dr. Masako Ichikawa (board-certified dermatologist), Dr. Yuko Tohma (board-certified dermatologist), and Dr. Keiko Ishii (board-certified plastic surgeon) provide care. The facility is equipped with advanced medical devices including laser treatment equipment, accepts credit cards and electronic payments, and provides parking and barrier-free access. The internal medicine department welcomes patients with general medical conditions and offers consultations for abnormal findings in health checkups and comprehensive medical screenings. The dermatology department provides consultations for skin abnormalities including itching, pain, color changes, texture changes, numbness, and swelling.