Located in Toyooka, Iruma City, Saitama Prefecture, Terashi Clinic is a clinic that primarily provides internal medicine services. The clinical departments include internal medicine, herbal medicine (Kampo), and dermatology, with the clinic director, who is also a herbal medicine specialist, providing medical care. Consultation hours are on Mondays, Wednesdays, and Fridays from 9:00 to 12:00 and 15:00 to 18:00; on Tuesdays from 9:00 to 12:00 for internal medicine and dermatology, and 14:00 to 18:00 for dermatology; and on Saturdays from 9:00 to 12:00 for internal medicine and dermatology. The clinic is closed on Thursdays, Sundays, and holidays, and reception hours start at 8:00 AM and 1:00 PM. Dermatology consultations are available on Tuesday mornings and afternoons, as well as Saturday mornings. Since June 2025, herbal medicine outpatient services began, and patients can receive treatment by herbal medicine specialists by appointment only on Monday mornings and afternoons. Afternoon consultation hours have been extended from 5:30 PM to 6:00 PM since April 2025. English language support is available, and the facility is equipped with a parking lot and barrier-free facilities. For the treatment of hypertension, diabetes, and dyslipidemia, personalized medical care is provided, including the creation of individualized treatment plans.