Ramen H. Chmait, M.D.
Director, Los Angeles Fetal Surgery
CHLA-USC Fetal-Maternal Center
Huntington Hospital
Dr. Ramen Chmait is recognized internationally as a leader in minimally invasive fetal surgery. He was recruited to the University of Southern California (USC) in 2006 to serve as Director of Los Angeles Fetal Surgery, part of the Fetal-Maternal Center, a collaboration between USC and Children’s Hospital Los Angeles.
Dr. Chmait’s research focuses on advancing the field of fetal medicine and surgery, and he has authored more than 200 peer-reviewed publications.
He can be reached at chmait@usc.edu
Arlyn Llanes, MHA, BSN, RN
Arlyn Llanes serves as the Program Coordinator for Los Angeles Fetal Surgery. She earned her Bachelor of Science in Nursing from Mount St. Mary’s College after completing her undergraduate studies at the University of California, Los Angeles (UCLA), and later obtained a Master’s in Healthcare Administration from the University of Southern California (USC).
Before joining Los Angeles Fetal Surgery, Arlyn worked in neonatal and pediatric intensive care at both Children’s Hospital Los Angeles (CHLA) and UCLA, gaining experience across clinical, administrative, and research roles.
In her current position, she oversees all clinical and administrative operations for the program and directs research activities, including regulatory compliance, protocol development, data management, and manuscript publication.
Kristine Rallo, RN
Kristine Rallo is the Clinical Nurse Coordinator for Los Angeles Fetal Surgery. She began her nursing career after graduating from the nursing program at CCBC-Baltimore County in Maryland. Kris worked as a Labor and Delivery nurse at Johns Hopkins Hospital before relocating to California in 2008, where she continued her work in Labor and Delivery with Kaiser Permanente. She joined the Los Angeles Fetal Surgery team in September 2013.
As Clinical Nurse Coordinator, Kris guides patients through every stage of care, from the initial consultation to post-procedure follow-up. She works closely with Dr. Ramen Chmait on all aspects of patient care and partners with him in the operating room to deliver advanced fetal interventions.
Stephanie Loew, BS, RDMS
Stephanie Loew is the Lead Fetal Sonographer for Los Angeles Fetal Surgery. She earned her Bachelor of Science in Diagnostic Medical Sonography from Platt College, Riverside, and became a Registered Diagnostic Medical Sonographer in 2014. Before joining Los Angeles Fetal Surgery in June 2020, Stephanie gained extensive experience as a traveling sonographer, working in hospitals and trauma centers across Northern and Southern California.
In her role, Stephanie partners closely with Dr. Ramen Chmait to provide real-time ultrasound imaging guidance in the operating room. She also performs all pre-operative and post-operative ultrasound evaluations for patients at Los Angeles Fetal Surgery.
Jennifer Dominguez
Jennifer Dominguez is the Office Coordinator for Los Angeles Fetal Surgery. Before joining the team, Jennifer worked as a Claims Lead with Blue Shield of California, where she specialized in coordinating provider claims.
In her current role, Jennifer manages front office operations and supports patients and families by coordinating authorizations, surgery scheduling, and specialist referrals, in addition to handling a wide range of administrative responsibilities.
Juan Limon
Juan Limon is the Data Management Specialist for Los Angeles Fetal Surgery. He earned his undergraduate degree from Azusa Pacific University and a Master of Divinity from Princeton Theological Seminary. Before joining the team, Juan worked in K–12 schools across Los Angeles, providing academic, technological, and administrative support.
At Los Angeles Fetal Surgery, Juan oversees data collection and entry, develops and manages databases, supports patient follow-up, and assists with medical records and administrative operations.