Matsushima Naika Clinic, located in Matsushima, Higashi-ku, Fukuoka City, is an internal medicine specialty clinic situated within a clinic mall adjacent to Matsushima Elementary School. The director, Dr. Takeaki Ota, has extensive experience as the director of a home care support clinic and as the head of the Cardiology Department at Fukushikai Hospital, providing care that supports each patient's peaceful daily life as a community primary care physician. The clinic primarily offers internal medicine and general cardiology services, providing a wide range of medical services including menopausal disorders, pacemaker checks, ED outpatient care, sleep apnea testing, various vaccinations, health screenings, and secondary examinations. In addition to general practice, a specialized diabetes and thyroid clinic is available every Wednesday, staffed by specialists. Diabetes HbA1c testing is characterized by quick results available in just a few minutes using in-clinic measurement equipment. Dr. Tadashi Kodama, a cardiology specialist and vice-director, holds certifications from the Japanese Circulation Society and the Japanese Society of Cardiovascular Interventions, providing care based on advanced expertise. The clinic is certified as a home care support clinic and offers home-visit medical care for elderly patients and those receiving nursing care who have difficulty visiting the clinic. The facility is equipped with parking and barrier-free access, and English-language services are available. Consulting hours are 9:00 AM to 1:00 PM in the morning and 2:00 PM to 6:00 PM in the afternoon, with the clinic closed on Sundays, public holidays, and during the New Year and Bon periods. Note that patients with fever or infectious symptoms are seen by telephone appointment only. The clinic is designated as an insurance medical institution and is also designated under the Livelihood Protection Act and as a designated medical institution for rare disease medical expense subsidies.