Nakai Clinic, conveniently located just a 3-minute walk from Nerima Station on the Seibu Ikebukuro and Oedo Lines, is a clinic offering comprehensive services in orthopedics, internal medicine, and pediatrics. In the orthopedics department, Dr. Fumihiko Nakai treats conditions such as lower back pain, osteoporosis, numbness in the limbs, and fractures, providing rehabilitation therapy and various injections. In the internal medicine department, Dr. Kazuhiko Nakai offers management of lifestyle diseases including hypertension and diabetes, digestive system conditions such as gastric and duodenal ulcers, and oral treatment for hepatitis virus in partnership with university hospitals. Special examinations include abdominal ultrasound, carotid artery, breast, and thyroid ultrasound, as well as transnasal endoscopy which causes minimal discomfort. The facility accepts credit cards and electronic payments, is equipped with parking and barrier-free facilities, and provides English language services. The clinic has implemented the online qualification verification system, with established procedures for electronic billing and qualification verification, electronic prescription issuance, and claiming medical information acquisition fees.