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Ophelia Yin, MD

Main Address

UCSF Maternal-Fetal Medicine Fellowship Program
OBGYN, Mailstop 0132
San Francisco, CA 94143-0132

Research/Clinical Interests

  • Caring for patients with high-risk maternal disorders that affect pregnancy, including abnormal placentation, organ transplant, and autoimmune diseases
  • Utilizing translational science research tools to create new diagnostic and therapeutic applications in obstetrics
  • Exploring the role of obstetricians in optimizing postpartum care and patients' transition into parenthood
  • Understanding the unique healthcare needs of the Asian American and Pacific Islander communities



current University of California, San Francisco Fellowship Maternal-Fetal Medicine / Clinical Informatics
2022 University of California, Los Angeles Residency Obstetrics, Gynecology and Reproductive Sciences
2018 Johns Hopkins University School of Medicine M.D. Medicine

Selected Publications

Yin O, Kallapur A, Coscia L, Kwan L, Tandel M, Constantinescu S, Moritz MJ, Afshar Y. Mode of obstetric delivery in kidney and liver transplant recipients and associated maternal, neonatal, and graft morbidity over five decades of clinical practice. JAMA Netw Open. 2021;4(10):e2127378. PMID: 34605918

Yin O, Richley M, Hadaya J, Mei J, Mok T, Fahim M, Pluym ID, Rao R, Martin C, Han CS, Benharash P, Afshar Y. Extracorporeal membrane oxygenation in pregnancy: a bridge to delivery and pulmonary recovery for COVID-19-related severe respiratory failure. Am J Obstet Gynecol. 2022;226(4):571-576.e5. PMID: 34922925

Selected Presentations

Yin O, Wong D, Ma F, Jang C, Jeong A, Afshar Y. Single-cell analysis of placenta accreta spectrum reveals functionally distinct cell populations. Poster presentation at the 2022 Society for Maternal-Fetal Medicine 42nd Annual Meeting.

Yin O, Huang J, Ng SM, Segars J. The role of A Kinase Anchoring Protein 13 (AKAP13) in ovarian Hippo signaling. Poster presentation at: American Society for Reproductive Medicine; 2017 Oct 28-Nov 1; San Antonio, TX.