Higashiyamato Junkankika Naika (Higashi-Yamato Cardiovascular and Internal Medicine), a medical corporation located in Narahashi, Higashi-Yamato City, Tokyo, is an internal medicine clinic specializing in cardiovascular care. Under the direction of Director Dr. Hayashi Hidekazu, the clinic provides a wide range of cardiovascular and general internal medicine services for local residents. Consultation hours cover weekday mornings and afternoons as well as Saturday mornings, offering a schedule well-suited for working professionals and busy patients. The clinic also emphasizes preventive medicine, actively providing various vaccinations including pneumococcal vaccines (switching to Prevenar 20 from fiscal year 2025), HPV vaccines, and shingles vaccines. Another notable feature is that health check-ups and insurance-covered treatments are scheduled on separate days, ensuring fairness within the healthcare system. The facility is barrier-free and equipped with 10 parking spaces, accommodating patients who use wheelchairs or arrive by car. It also supports digital check-in via My Number Card and smartphone through the Myna Reception system. Excellent access—just a one-minute walk from Seibu Bus and Toei Bus stops—further enhances the clinic's convenience.