Forest Internal Medicine & Rheumatology Clinic, located in Omorinaka, Ota Ward, Tokyo, is a medical facility conveniently located just a 1-minute walk from Umeyashiki Station on the Keikyu Main Line. The director has experience as a lecturer at Tsukuba University Hospital and at the National Center for Global Health and Medicine, holding qualifications as a Board-Certified Specialist in Internal Medicine from the Japanese Society of Internal Medicine and as a Rheumatology Specialist from the Japan College of Rheumatology. General internal medicine covers a wide range of conditions including fever and cold symptoms, lifestyle diseases such as hypertension, diabetes, and dyslipidemia, as well as headaches, dizziness, and gastrointestinal symptoms. The rheumatology and collagen disease departments provide specialized care for morning stiffness, joint pain and swelling, numbness in the hands and feet, dry eyes and mouth, unexplained rashes and fever, offering advanced diagnosis and cutting-edge treatment comparable to university hospitals. The clinic is equipped for same-day blood biochemistry and urinalysis, and features joint ultrasound, X-ray, and bone density testing for rheumatoid arthritis diagnosis. A 24-hour online booking system is available for both new and returning patients, and walk-in visits are also accepted. The clinic welcomes transfers and second opinion consultations without referral letters. It has been selected for "Recommended Rheumatology Clinics in Tokyo" on Mynavi Clinic Navigator from 2024 to 2026. The clinic offers English-language support and accepts credit cards, electronic payments, and is barrier-free accessible.