Located in Gyoda City, Saitama Prefecture, Nasu Clinic specializes in internal medicine. The clinic primarily treats cardiovascular diseases and metabolic syndrome. Regular outpatient hours are held on Monday, Tuesday, Wednesday, and Friday from 9:00 to 13:00 and 14:30 to 17:30. On Thursday, evening outpatient hours are available from 12:00 to 15:00 and 16:30 to 20:30. Registration is accepted until 60 minutes before the end of each session. First-time patients without prior appointments are not accepted; contact must be made via the website's inquiry form or by phone. Prescriptions are valid for 4 days including the date of issue. Minors below high school age are generally not treated. Patients under 18 must be accompanied by a guardian. Evening and early morning surcharges apply for treatments after 18:00. The clinic places emphasis on infection control, with patients experiencing fever, sore throat, or cough being treated near the back entrance with symptomatic treatment only. This clinic provides support for multiple languages including English and Korean. Credit cards, debit cards, and electronic payments are accepted. Parking and barrier-free facilities are available.