Located just a 0-minute walk from Shin-Kamagaya Station, Shin-Kamagaya Ekimae Clinic is an internal medicine clinic on the second floor of Shin-Kamagaya Hills in Kamagaya City, Chiba Prefecture. The clinic's director, Dr. Mark Kobayashi, has a unique career path—he graduated from the City University of New York Graduate Center, worked for the United Nations, then transferred to Tokai University School of Medicine to earn his medical license. With 10 years of experience as an emergency physician and another 10 years as a designated mental health physician, he holds multiple specialty qualifications including Ministry of Health, Labour and Welfare Designated Mental Health Physician and specialist/instructor certifications from the Japanese Society of Psychiatry and Neurology. He has published case reports in the academic journal "Latest Psychiatry" and actively conducts serotonin research for depression treatment. The clinic offers a wide range of services, from everyday acute symptoms like cough, fever, diarrhea, and dizziness to chronic conditions such as hypertension, diabetes, and dyslipidemia, as well as psychosomatic medicine. Initial psychosomatic medicine consultations include standard physical examinations (blood tests, ECG, urine tests) combined with proprietary serotonin testing for evidence-based treatment. Colds and allergies can be treated without appointments, while all other services require advance reservations. The clinic is also equipped to handle sudden changes and emergencies. English-speaking services and barrier-free facilities are available.