Doctor of Medicine, Tohoku University, Sendai, Japan, 1983.
Resident, Takeda Hospital, Aizuwakamatsu, Japan, 1983-1985; research fellow, Royal Postgraduate Medical School, London, 1988-1990; research fellow, Tohoku University School Medicine, Sendai, 1985-1988, 90, 92-; consultant physician, Miyako (Japan) Hospital, 1991.
Member Japan Endocrine Society, Japanese Society Internal Medicine, Japan Diabetes Society, International Society Neuroendocrinology, Japan Society for Dialysis Therapy, Japanese Society Biochemistry, The Endocrine Society, New York Academy of Sciences, Japanese Society Nephrology, Japanese Society Molecular Biology.
Married Izumi Miura Takahashi, November 1, 1987. Children: Kimihiro, Hidemi, Sayaka, Akihiro.