Kasaoka Daiichi Hospital, operated by the medical corporation Seiwakaisociation, is located in Yokoshima, Kasaoka City, Okayama Prefecture, and provides medical services centered on internal medicine. Consultations are available on weekdays from 9:00 to 12:00 and 14:00 to 17:00, and on Saturday mornings only; the clinic is closed on Sundays, public holidays, and year-end/New Year holidays. In addition to internal medicine, the hospital houses a Hand Surgery and Upper Limb Surgery Center, where Dr. Hashizume — who has been featured extensively in the media — practices. The facility also offers pediatrics and a vaccination center, accommodating a wide range of patients across all age groups with various immunizations. A convenient online booking system for low-pain breast cancer screenings has been introduced, reflecting the hospital's commitment to accessible medical check-ups. English-language services are available, and the hospital accepts a variety of payment methods including credit cards, debit cards, and electronic payments, with on-site parking provided. Associated facilities include the sick-child daycare room "Sukoyaka Kids Room," a health management center, and the wellness club "ONE." The hospital also collaborates with the Seto Life Support Center, which encompasses a special nursing home, a long-term care health facility, and a visiting nurse station, enabling the hospital to offer comprehensive support covering medical care, nursing, and welfare for the local community.