Located in Ooka, Numazu City, Shizuoka Prefecture, Kato Internal Medicine Clinic specializes in cardiology and gastroenterology. Established in May 2012, the clinic features a director who gained extensive experience as a general internal medicine section chief at Numazu Municipal Hospital and university hospitals. The clinic treats general internal medicine conditions and provides holistic care combining cardiology and gastroenterology expertise with comprehensive internal medicine experience. Diagnostic services include cardiovascular examinations (ECG, cardiac echocardiogram, pulse wave testing) and gastrointestinal examinations (upper GI endoscopy, abdominal echocardiogram), with high-definition endoscopic systems providing clear imaging. Rapid in-house testing includes radiography, respiratory function tests, urinalysis, and blood tests. The clinic offers web-based queuing via PC or mobile phone, as well as phone queuing. Online consultations are available for existing patients, and the facility provides parking, barrier-free access, and English language support. Hours are 9 AM to 12 PM and 3 PM to 6 PM, closed on Wednesdays, Sundays, and holidays, with afternoon closure on Saturdays.