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Our Physicians

Bruce Chen, MD

Maternal Fetal Medicine

Bruce Chen, MD, is the child of Chinese immigrants, born and raised in Ohio. Attended Case Western Reserve University with a B.A. in Chemistry and M.D. and then came to Hawaii for residency in OB/Gyn at Tripler Army Medical Center. Following a tour of duty in Alaska as a general OB/Gyn, he completed a fellowship in Maternal Fetal Medicine at Barnes Hospital, Washington University in St. Louis, MO and then returned to Hawaii where he worked for 12 years at Tripler Army Medical Center as the Chief of Maternal Fetal Medicine and Director of the Antepartum Diagnostic Center. He joined the Fetal Diagnostic Institute of the Pacific in 2008 after retiring from the U.S. Army. He is board certified in Obstetrics & Gynecology and Maternal Fetal Medicine and is a fellow in the American College of Obstetricians and Gynecologists, a member of the Society for Maternal Fetal Medicine, and a member of the American Institute of Ultrasound in Medicine. His professional focus has been in ultrasound and medical informatics.


Dr. Chen is married with five children. His children attend UC Irvine, UCSF, Saint Louis School, La Pietra, and Iolani School.

Greigh Hirata, MD

Perinatologist, Maternal Fetal Medicine

Greigh Hirata, MD, was born and raised in Hawaii. He attended college, medical school, and trained in the Los Angeles area. After 15 years of absence he returned to Hawaii where he helped develop and manage the Fetal Diagnostic Center at Kapi'olani Medical Center for Women and Children. In 2005 he left Kapi'olani and founded the Fetal Diagnostic Institute of the Pacific, dedicated to the health of the women in Hawaii. He is board certified in Obstetrics and Gynecology, subspecialty board certified in Maternal Fetal Medicine, and board certified in Medical Genetics. His professional interests include prenatal diagnosis and medical complications of pregnancy.


He likes to golf and travel during his rare time away from the office.

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