John Williams, MD

Director, Reproductive Genetics Service

Professor, Obstetrics and Gynecology

John Williams, MD

Mark Goodson Building
444 S San Vicente Blvd
Ste 1001
Los AngelesCA
90048

Phone:

310-423-9999

Fax:

310-423-9940

12746 W Jefferson Blvd
Ste 4000
Playa VistaCA
90094

Phone:

310-423-7788

Fax:

310-423-9939

John Williams, MD

Director, Reproductive Genetics Service

Professor, Obstetrics and Gynecology

  • Ob/Gyn-Maternal Fetal Medicine
  • Medical Genetics

John Williams, MD, is the director of Reproductive Genetics and a full-time faculty member in the Division of Maternal-Fetal Medicine and the Department of Obstetrics and Gynecology. He is also a professor of Obstetrics and Gynecology. For 30 years, his research has been in the area of first-trimester prenatal diagnosis and screening. Since rejoining the full-time faculty at Cedars-Sinai nearly 20 years ago, Dr. Williams has developed one of the most comprehensive first-trimester prenatal diagnosis programs in the United States. As a pioneer in chorionic villus sampling (CVS), he has performed more than 31,000 of these procedures to date. During the 2015-16 academic year, Dr. Williams performed 546 CVS procedures. Most recently, his research has focused on identification of potential markers of risk for subsequent development of pregnancy complications. Currently, he is building a tissue repository of blood, urine, saliva and chorionic villus samples in patients undergoing CVS. His team has enrolled over 2,300 patients in the repository. Dr. Williams is conducting a study to investigate the relationship between placental genes, vascular growth factors and various markers in the first and early second trimesters, and risk for adverse perinatal outcome, including maternal hypertensive disorders, fetal growth abnormalities, preterm labor and premature rupture of membranes.

  • Medical School: UCLA, 1978
  • Internship: Harbor-UCLA Medical Center, 1979
  • Residency: Harbor-UCLA Medical Center, 1982
  • Fellowship: Harbor-UCLA Medical Center, 1985
  • Los Angeles Magazine Top Doctors (as selected by their peers), 2017
  • Southern California Super Doctors, 2014-15
  • Council on Resident Education in Obstetrics and Gynecology Award for Excellence in Teaching, Department of Obstetrics and Gynecology, 2012
  • Golden Apple Award for Excellence in Teaching, Cedars-Sinai Department of Obstetrics and Gynecology, 2010
  • Outstanding and Distinguished Service as Director for Maternal Fetal Medicine, Cedars-Sinai Department of Obstetrics and Gynecology, 2005-07
  • Lee B, Kroener LL, Xu N, Wang ET, Banks A, Williams III J, Goodarzi M, Wang Y, Gangalapudi V, Pisarska M. Function and hormonal regulation of the GATA3 in human first trimester placentation. Biology Reprod. 2016; 95(5):113e1-9. PMID: 27733378.
  • Xu, N Barlow GM, Cui J, Wang ET, Lee B, Akhlaghpour M, Kroener L, Williams III J, Rotter JI, Chen YI, Goodarzi MO, Pisarska MD. Comparison of genome-wide and gene-specific DNA methylation profiling in first-trimester chorionic villi from pregnancies conceived with infertility treatments. Reprod Sciences 2017;24:1-9. PMID: 28090815.
  • Singh K, Williams J 3rd, Brown J, Wang ET, Lee B, Gonzalez TL, Cui J, Goodarzi MO, Pisarska MD. Up-regulation of microRNA-202-3p in first trimester placenta of pregnancies destined to develop severe preeclampsia, a pilot study. Pregnancy Hypertens. 2017 10:7-9. PMID: 29153693

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