Bosei Shinjuku Minamiguchi Clinic

Opened in 2001 and part of the Showakai medical group, this clinic in Shibuya offers general internal medicine outpatient care and hemodialysis, with a particular focus on chronic kidney disease (CKD). Alongside general internal medicine, it runs specialty clinics in nephrology, hypertension, cardiology, diabetes and psychosomatic medicine, staffed by specialist physicians including the group's chairman and other university professors emeritus. The 41-bed dialysis unit provides late-evening ('semi-night') sessions convenient for those coming after work, with TVs at each bed and free Wi-Fi. It sits directly connected to Shinjuku Station's south exit, about a two-minute walk via an underground passage.