Located in the Ueno area of Tokyo, Zousan Internal Medicine Clinic is a medical facility specializing in internal medicine. For lifestyle disease management, they provide treatment for hypertension, diabetes, dyslipidemia, asthma, liver function disorders, and abnormal health screening results. They also conduct sleep apnea syndrome testing and CPAP treatment, as well as upper gastrointestinal endoscopy using gastroscopy, enabling examination of gastritis, reflux esophagitis, and Helicobacter pylori testing. For acute symptoms, they handle fever, cold symptoms, sore throat, cough, abdominal pain, diarrhea, and vomiting. In preventive medicine, they offer various vaccinations including influenza, shingles, tetanus, RSV virus, and pneumococcus. Self-pay medical services include placenta injections, vitamin injections, glutathione injections, immunity-boosting injections, and AGA treatment. They also issue various medical certificates. To improve convenience for outpatient patients, credit cards and electronic payments are accepted. Barrier-free accessibility measures are also in place. The clinic tends to be crowded between 5 PM and 7 PM, and appointments are recommended. Since May 2025, Wednesdays and Sundays are closed.