Koizumi Clinic, located in Hoshikawa, Hodogaya-ku, Yokohama City, is a medical facility that primarily provides internal medicine care. The clinic also specializes in gastrointestinal treatment, and in November 2023, obtained certification as a qualified physician for upper gastrointestinal endoscopy screening. Services offered include garlic injections and COVID-19 vaccines, and for patients with cold symptoms, consultations are conducted while implementing measures to prevent waiting room infections. The official blog regularly provides useful health information such as treatment methods for chronic constipation, colon cancer prevention, and knowledge about norovirus. Business hours are from 8:30 AM to 12:00 PM and 3:00 PM to 6:30 PM on Mondays through Fridays, and from 8:30 AM to 12:00 PM on Saturdays. The clinic is closed on Thursdays, Sundays, and holidays. There is also a system in place to check the clinic's congestion status through the external website "Neko no Me.com." In terms of facilities, the clinic has parking and barrier-free access, creating a highly convenient environment for visits. Additionally, English services are available, and payment methods include credit cards and electronic payments, allowing a wide range of users to receive medical care smoothly.