Juan Vargas, MD

Obstetrician and medical geneticist

Dr. Juan E. Vargas is an obstetrician and geneticist at UCSF Benioff Children's Hospital, specializing in prenatal diagnosis, reproductive genetics, obstetric ultrasound, high-risk pregnancies, drugs and pregnancy and intrahepatic cholestasis of pregnancy. He cares for patients in San Francisco as well as at ValleyCare Medical Center in Pleasanton.

Vargas earned a medical degree from the Universidad de Chile and completed a residency in obstetrics and gynecology at UCSF and a fellowship in medical genetics at Children's Hospital, Boston. Vargas is a professor at the UCSF Prenatal Diagnosis and Fetal Treatment centers, and in the departments of radiology and obstetrics, gynecology and reproductive services. He also is director of obstetrics at San Francisco General Hospital. He is bilingual in Spanish and English.


Prenatal Diagnostic Center
1825 Fourth St., Third Floor
San Francisco, CA 94158
Phone: (415) 476-4080
Fax: (415) 353-4077

Hours: Monday to Friday
8 a.m. – 5 p.m.

Academic Title

Clinical Professor

More about Juan Vargas

Additional Languages



Universidad de Chile 1990


UCSF Medical Center, Obstetrics & Gynecology 1999


Children's Hospital, Medical Genetics 1998

Selected Research and Publications

  1. Bull LN, Hu D, Shah S, Temple L, Silva K, Huntsman S, Melgar J, Geiser MT, Sanford U, Ortiz JA, Lee RH, Kusanovic JP, Ziv E, Vargas JE. Intrahepatic Cholestasis of Pregnancy (ICP) in U.S. Latinas and Chileans: Clinical features, Ancestry Analysis, and Admixture Mapping. PLoS One. 2015; 10(6):e0131211.
  2. Lewkowitz AK, O'Donnell BE, Nakagawa S, Vargas JE, Zlatnik MG. Social media messaging in pregnancy: comparing content of Text4baby to content of free smart phone applications of pregnancy. J Matern Fetal Neonatal Med. 2016 Mar; 29(5):745-51.
  3. Rosenstein MG, Vargas JE, Drey EA. Ultrasound-guided instrumental removal of the retained placenta after vaginal delivery. Am J Obstet Gynecol. 2014 Aug; 211(2):180.e1-3.
  4. Kuk JY, An JJ, Cha HH, Choi SJ, Vargas JE, Oh SY, Roh CR, Kim JH. Optimal time interval between a single course of antenatal corticosteroids and delivery for reduction of respiratory distress syndrome in preterm twins. Am J Obstet Gynecol. 2013 Sep; 209(3):256.e1-7.
  5. Brasic N, Warden M, Vargas JE. Conservative management of cesarean scar pregnancy with sonographically guided transvaginal methotrexate injection. J Ultrasound Med. 2013 Jun; 32(6):1061-3.
  6. Wong AE, Kuppermann M, Creasman JM, Sepulveda W, Vargas JE. Patient and provider attitudes toward screening for Down syndrome in a Latin American country where abortion is illegal. Int J Gynaecol Obstet. 2011 Dec; 115(3):235-9.
  7. Shaffer BL, Cheng YW, Vargas JE, Caughey AB. Manual rotation to reduce caesarean delivery in persistent occiput posterior or transverse position. J Matern Fetal Neonatal Med. 2011 Jan; 24(1):65-72.
  8. Jelin AC, Glenn OA, Strachowski L, Vargas JE. Membranous aplasia cutis congenita: a recognizable lesion on prenatal sonography. J Ultrasound Med. 2009 Oct; 28(10):1393-6.
  9. Steinauer JE, Diedrich JT, Wilson MW, Darney PD, Vargas JE, Drey EA. Uterine artery embolization in postabortion hemorrhage. Obstet Gynecol. 2008 Apr; 111(4):881-9.
  10. Shaffer BL, Cheng YW, Vargas JE, Laros RK, Caughey AB. Manual rotation of the fetal occiput: predictors of success and delivery. Am J Obstet Gynecol. 2006 May; 194(5):e7-9.
  11. Shaffer BL, Cheng YW, Vargas JE, Laros RK, Caughey AB. Face presentation: predictors and delivery route. Am J Obstet Gynecol. 2006 May; 194(5):e10-2.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.