Okai Internal Medicine Clinic is located in Sekishicho, Chuo Ward, Hamamatsu City, Shizuoka Prefecture, and is accessible on foot in approximately 12 minutes from Enshu-Nishigasaki Station and Sekishi Station on the Enshu Railway West Kajima Line. The facility is equipped with a total of 50 parking spaces in front of the clinic and on the east side, and is barrier-free. An internal medicine specialist treats general internal medicine conditions, with particular expertise in gastroenterology, endoscopic examinations, and hepatology. The clinic offers comprehensive medical services spanning general internal medicine for conditions like colds, fever, and lifestyle diseases, as well as respiratory medicine for coughs and asthma, and cardiology for hypertension and arrhythmias. Hours are 9:00 AM to 12:00 PM and 3:00 PM to 6:30 PM, with last appointments 10 minutes before closing. The fever clinic operates 9:00 AM to 11:00 AM and 3:30 PM to 5:30 PM. This medical facility supports English, credit cards, and electronic payments, and first-time patients can use web-based pre-consultation questionnaires.