Doi Surgical and Gastroenterology Clinic, located in Hirai-cho, Matsuyama City, Ehime Prefecture, is a community-based clinic specializing in gastroenterology. The clinic centers its practice on gastric and colorectal cancer screenings and lifestyle disease management, maintaining a high-precision screening system designed to detect gastrointestinal cancers at an early stage, when symptoms are often not yet apparent. For lifestyle-related conditions such as hypertension, diabetes, dyslipidemia, and metabolic syndrome, the clinic provides continuous care ranging from prevention through treatment, and offers individualized health management plans that include dietary guidance and exercise therapy. Consultations are conducted on weekdays in two sessions—morning and afternoon—with the clinic closed on Sundays and public holidays. English-language support is available, making it accessible for patients who require communication in a language other than Japanese. The facility is also equipped with a parking lot and is fully barrier-free, ensuring ease of access for patients arriving by car and those with mobility concerns. Serving as a trusted neighborhood physician, the clinic provides attentive, personalized care to each patient and functions as a specialist consultation resource for those concerned about their health screening results or gastrointestinal symptoms.