Hwang Joseph Dept Web

Joseph K Hwang, MD

Clinical Associate Professor

Joined UW Medicine:


Clinical Focus:

Maternal-Fetal Medicine:
• Prenatal diagnosis
• Preterm birth prevention
• Cerclage placement


• Washington, 2015
• Minnesota, 2015; Iowa, 2015


• Obstetrics and Gynecology, 2000
• Maternal-Fetal Medicine, 2003


• MD Degree
   (Loyola University of Chicago Stritch SOM, 1992)
• Residency in Obstetrics and Gynecology
   (Georgetown University SOM, 1996)
• Fellowship in Maternal-Fetal Medicine
   (Yale University SOM, 2000)

Research Interests:

• Cervical length assessment
• Microbiome in preterm birth prevention
• Perinatal quality assessment


• American Congress of Obstetricians and Gynecologists
• Society for Maternal-Fetal Medicine

Selected Publications:

Bender RM, Hwang J.  Sonographic prenatal diagnosis of congenital Marfan syndrome. The U of Iowa Proc Obstet Gynecol. 2012;2(4):40.

Hassan S, Romero R, Vidyadhari D, Fusey S, Baxter JK, Khandelwal M, et al. Group author: PREGNANT Trial. Vaginal progesterone reduces the rate of preterm birth in women with a sonographic short cervix: a multicenter, randomized, double-blind, placebo-controlled trial. Ultrasound Obstet Gynecol. 2011;38:18–31.

Watson WJ, Hwang J, Brost BC. Dilation and evacuation of a single fetus after midtrimester PROM in previable twin pregnancy. Am J Perinatol. 2008 Oct;25(9):583–5. PMID: 18756429

Petersen PH, Zou K, Hwang JK, Jan YN, Zhong W. Progenitor cell maintenance requires numb and numblike during mouse neurogenesis. Nature 2002 Oct 31;419(6910):929–34. PMID: 12410312

Kovaleski D, Zawada ET, Santella R, Watson W, Rossing W, Hwang JK. Guillain-Barre syndrome in pregnancy and treatment with plasmapheresis. South Dakota J of Med. 2002 May;181–185.

Chiu CH, Amemiya CT, Carr JL, Bhargava J, Hwang JK, Shashikant CS, Ruddle FH,Wagner GP. A recombinogenic targeting method to modify large-inserts for cis-regulatory analysis in transgenic mice: construction and expression of a 100-kb, zebrafish Hoxa-11b-lacZ reporter gene. Dev Genes Evol. 2000 Feb;210(2):105–9. PMID: 10664153

Zimon AE, Hwang JK, Principe DL, Bahado-Singh RO. Pseudoaneurysm of the uterine artery. Obstet Gynecol. 1999 Nov; 94(5 Pt 2):827–830. PMID: 10546745.

Jameson CJ, Jameson AK, Smith NC, Hwang JK, Zia T. Carbon-13 and proton spin relaxation in methane in the gas phase. J Phys Chem. 1991 Feb;95(3):1092–8.

Jameson CJ, Jameson AK, Hwang JK. 19F nuclear spin relaxation by intermolecular magnetic dipole coupling. CF4 and SiF4 in oxygen gas. J Chem Phys. 1991 Jan; 94(1):172–8.

Jameson CJ, Jameson AK, Hwang JK. Proton relaxation in methane with oxygen gas. J Phys Chem. 1989 Jan;93(2) 634–8.

Jameson CJ, Jameson AK, Hwang JK, Smith NC. Cross section for the anisotropic interaction of NNO with various molecule. J Chem Phys. 1988 Nov;89(9):5642–9.

Jameson CJ, Jameson AK, Hwang JK. Nuclear spin relaxation by intermolecular magnetic Dipole coupling in the gas phase 129Xe in oxygen. J Chem Phys. 1988 Oct;89(7):4074–81.

Jameson CJ, Jameson AK, Hwang JK, Dabkowski D. Competition of intra- and intermolecular spin relaxation mechanisms for SF6 in oxygen gas. J Phys Chem. 1988 Oct;92(21):5937–41.

Appointments & Practice Locations

UW Medicine Maternal Fetal Medicine Clinic, Valley Medical Center
(in the Medical Arts Center building)
4033 Talbot Road South, Suite #450
Renton, WA 98055

Appointments:   425.656.5520

Maternal and Infant Care Clinic (MICC)
UW Medical Center, 3rd Floor, SW 350
1959 NE Pacific St, Seattle, WA 98195

Appointments:   206.598.4070