Born on July 5, 1951 in Takasaki City, Gunma Prefecture, originally from Takasaki City. Komaba High School (Koma) attached to Tokyo University of Education, Department of Medicine, Nippon Medical University School of Medicine. Joined the Department of Pediatrics, Nippon Medical University First Hospital. Director of Koizumi Pediatric Clinic in 1986 (updated). Doctor, Doctor of Medicine. Member of the Japanese Pediatric Society, Japanese Pediatric Association, and Japanese Society of Pediatric Neurology. Director of the Takasaki City Medical Association, vice president of the Takasaki City Medical Association, president of the Takasaki City Medical Association, counselor of the Gunma Prefectural Medical Association, permanent director of the Japan Medical Association, and vice president of the Japan Medical Association. Member of the Novel Coronavirus Infectious Disease Countermeasures Expert Meeting, New Coronavirus Infectious Disease Countermeasures Subcommittee, New Coronavirus Advisory Board, and New Influenza Countermeasures Promotion Council. Takasaki Spring Festival Executive Committee Member
〇Newly appointed Health, Labor and Welfare Committee, Settlement Committee
(Appointed on December 18, 2020)