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Division of Maternal Fetal Medicine Faculty
Carol Major, MD
Clinical Professor
Director, Division of Maternal Fetal Medicine
Assistant Dean of Student Affairs
Assistant Dean of Diversity and Inclusion
Dr. Carol Major is a professor in the Department of Obstetrics & Gynecology. She is the director of the Maternal Fetal Medicine Division and also serves as the Assistant Dean of Student Affairs and the Assistant Dean of Diversity and Inclusion at UC Irvine School of Medicine. She is certified by the American Board of Obstetrics and Gynecology and has received subspecialty certification in maternal fetal medicine. Her research interests include the management of diabetes in pregnancy, premature rupture of membranes and preterm labor. She is the director of Perinatal Services at Fountain Valley Regional Hospital in Fountain Valley, California. Major has been named as a Physician of Excellence in Orange County since 2006 and has been named as a “Best Doctor in America” since 2011.
Education
Stanford University, 1981 — BA
Case Western Reserve University, 1985 — MD
UC San Francisco, 1989 — Residency, obstetrics and gynecology
UC Irvine, 1991 — Fellowship, maternal fetal medicine
Dongbao Chen, PhD
Professor
Director, Perinatal Research Laboratories
Dongbao Chen, PhD, is a tenured professor of Obstetrics & Gynecology with a secondary appointment in Pathology, and he is also a faculty of the Cellular and Molecular Biosciences gateway PhD program. His current NIH-funded research accentuates on dissecting the cellular and molecular mechanisms for hormone and growth factor regulation of vasodilatation and angiogenesis at the maternal, fetal, and placental interface via reactive nitrogen and oxygen species.
Education
Northwestern Agricultural University, Shaanxi, China, 1985 — BS, animal sciences
Northwestern Agricultural University, 1988 — MS, animal reproduction
Beijing Agricultural University, Beijing, China, 1991 — PhD, reproductive physiology
Baylor College of Medicine, 1995 — PostDoc, reproductive physiology
University of Kansas School of Medicine, 1998 — PostDoc, molecular endocrinology
Judith Chung, MD, PhD
Professor of Clinical Obstetrics & Gynecology
Director, Maternal Fetal Medicine Fellowship Program
Director of Education, Maternal Fetal Medicine
Dr. Judith Chung is a Professor of Clinical Obstetrics and Gynecology. She serves as the Fellowship Director for the Maternal-Fetal Medicine Fellowship Program at UC Irvine. Dr. Chung is board-certified in Obstetrics and Gynecology and in the subspecialty of Maternal-Fetal Medicine. Her research focus is in clinical research design and execution, which led her to pursue additional training in Health Services Research and Epidemiology.
Education
Wellesley College, 1991 — BA, Chemistry and French
University of Pennsylvania, 1996 — MD
Hospital of the University of Pennsylvania, 2000 — Residency, Obstetrics and Gynecology
UC Irvine, 2003 — Fellowship, Maternal-Fetal Medicine
UCLA, 2009 — PhD, Health Services Research
Afshan B. Hameed, MD
Clinical Professor, Maternal Fetal Medicine and Cardiology
Director, Obstetrical Services, Quality and Patient Safety
Director, Cardio-Obstetrics
Dr. Afshan Hameed is board-certified in obstetrics and gynecology, maternal fetal medicine, internal medicine and cardiology. Apart from managing high-risk pregnancies, her expertise includes cardiovascular disease, fetal echocardiography and anticoagulation in pregnancy. Hameed serves on the California Maternal Quality Care Collaborative (CMQCC) Maternal Mortality Review Committee and has co-chaired the Cardiovascular Disease in Pregnancy and Venous Thromboembolism Toolkits from CMQCC. Hameed's ongoing research focus is on cardiovascular screening in pregnancy to improve maternal morbidity and mortality.
Education
King Edward Medical University, Pakistan, 1988 — MD
USC Keck School of Medicine, 1995 — Residency, internal medicine
USC Keck School of Medicine, 1997 — Fellowship, cardiology
USC Keck School of Medicine, 2001 — Residency, obstetrics and gynecology
UC Irvine, 2005 — Fellowship, maternal fetal medicine
Tamera Hatfield, MD, PhD
Professor
Dr. Tamera Hatfield is a double board certified obstetrician-gynecologist specializing in maternal fetal medicine. She is passionate about her work treating high-risk pregnancy patients and has a particular interest in managing maternal conditions that complicate pregnancy with a special interest in cancer and pregnancy. She recently served on the National Academies of Sciences, Medicine & Engineering committee to advise evidenced based revisions of the Women’s, Infants and Children’s (WIC) food packages. Hatfield is actively involved in educating community OB-GYNs and has worked diligently to improve maternal and neonatal outcomes in our neighboring communities. She is involved with teaching residents and medical students and previously served on the Council on Resident Education in Obstetrics and Gynecology. She is also a member of the Society for Maternal Fetal Medicine and recent recipient of an Orange County Physician of Excellence Award.
Education
UC Irvine, 1987 — BS, BA, biological sciences/psychology
University of North Carolina, 1995 — PhD, behavioral neuroscience
UC Irvine School of Medicine, 2004 — MD
UC Irvine, 2008 — Residency, obstetrics and gynecology
UC Irvine, 2011 — Fellowship, maternal fetal medicine
Jennifer A. Jolley, MD 
Professor
Associate Residency Program Director
Dr. Jennifer Jolley is a professor of clinical obstetrics and gynecology. She is double board-certified in obstetrics and gynecology and the subspecialty of maternal fetal medicine. Jolley’s clinical interests include ultrasound, fetal intervention and multiple gestations. She has experience with prenatal diagnosis and treatment and strives to support and coordinate care for families experiencing a pregnancy complicated by fetal disease or structural anomaly. She is also the associate program director for the UC Irvine Department Obstetrics & Gynecology Residency Program and is involved in both resident and fellow education.
Education
Stanford University, 1998 — BA, human biology
UC Irvine School of Medicine, 2004, — MD
UC Irvine, 2008 — Residency, obstetrics and gynecology
UC Irvine, 2011 — Fellowship, maternal fetal medicine
Manuel Porto, MD
Professor, Obstetrics and Gynecology
Dr. Manuel Porto is a professor in the Department of Obstetrics & Gynecology. He is certified by the American Board of Obstetrics and Gynecology and has received subspecialty certification in maternal fetal medicine. His research interests include fetal diagnosis and therapy, antepartum fetal testing, recurrent pregnancy loss, multifetal pregnancies and preterm birth prevention.
Education
State University of New York, 1971 — BS, biology/psychology
Rutgers Medical School, 1975 — MD
LA County Harbor General Medical Center, 1979 — Residency, obstetrics and gynecology
UC Irvine, 1986 — Fellowship, maternal fetal medicine
Dr. Rebecca J. Post, MD
Assistant Clinical Professor
Dr. Rebecca J. Post is a board-certified obstetrician and gynecologist who is fellowship-trained in maternal-fetal medicine and high-risk pregnancies. Her clinical and research interests include fetal diagnosis and ultrasound, gestational diabetes and medical disorders in pregnancy. She is the author or co-author of more than a dozen studies published in peer-reviewed journals and has delivered presentations at numerous national conferences. Post is a fellow of the American Congress of Obstetricians and Gynecologists and a member of the Society for Maternal-Fetal Medicine, the American Institute for Ultrasound in Medicine and the International Society of Ultrasound in Obstetrics and Gynecology.
Education
UC Irvine, 2009 — BS, neurobiology with Summa cum Laude and Phi Beta Kappa honors
UCI School of Medicine, 2015 — MD
Kaiser Permanente Los Angeles Medical Center, 2019 — Residency, obstetrics and gynecology
UCI Medical Center, 2022 — Fellowship, maternal-fetal medicine
Jonathan G. Steller, MD
Assistant Clinical Professor
Dr. Jon Steller is board-certified in both Obstetrics & Gynecology and board-eligible Maternal Fetal Medicine. He currently serves a quadruple role as an assistant clinical professor at UCI seeing patients in outpatient, inpatient and ultrasound settings, as one of Deans Scholars facilitating the Clinical Foundations course for 1st and 2nd year medical students at the UCI School of Medicine, as an Aerospace Medicine Physician with NASA’s Exploratory Medical Capabilities team, and as a space medicine researcher focused on gynecologic and reproductive health in the space environment.
In addition to his cosmic endeavors, he shares a clinical interest in fetal growth restriction, maternal endocrine disorders, and medical education for which he has authored numerous publications, textbook chapters, and runs a freely available medical education website dedicated to the creation of accessible, efficient, and reliable teaching resources in OBGYN, Family Medicine, and Emergency Medicine: www.flame.rocks. In his spare time, you may find him on the beach playing volleyball or cheering on the UCI Men’s Volleyball team where he once was a NCAA Division 1 All-American and National Champion during his undergraduate years.
Education
University of California, Irvine - 2004-2009 – Bachelor of Science – Neurobiology
University of California, Irvine - 2004-2009 – Bachelor of Arts – Classics
University of California, Irvine School of Medicine - 2009-2013 – MD
University of California, Irvine - 2013-2017 – Residency, Obstetrics & Gynecology
University of Colorado - 2017-2020 – Fellowship, Maternal Fetal Medicine
Julia Bregand-White, MD
Assistant Professor, Division of Maternal Fetal Medicine in the Department of Obstetrics and Gynecology
Julia Bregand-White, MD is an Assistant Professor in the Division of Maternal Fetal Medicine in the Department of Obstetrics and Gynecology who provides prenatal care and consultations for complex pregnancies. Her clinical interests include caring for women whose pregnancies are complicated by fetal anomalies, at risk for preterm birth or complicated by maternal medical conditions. She also sees patients in the CHOC UCI Fetal Care Center of Southern California to provide accurate diagnosis of complex fetal conditions and to facilitate multidisciplinary consultation in collaboration with pediatric subspecialists to improve the care and outcome of these complicated pregnancies.
Dr. Bregand-White has a special interest in graduate medical education and health care administration. She is the Obstetrics and Gynecology Residency Program Director here at UC Irvine and has developed a series of educational initiatives aimed to improve evidence based clinical consensus as well as the education of staff and trainees. She serves as the Director of Programming for the CHOC UCI Fetal Care Center of California. In addition, she is leading a collaborative initiative to address the clinical, educational, and interprofessional environment of the UCI Perinatal Service Line.
Education