School of Medicine
Showing 301-320 of 562 Results
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Estephannie Alvarez
Assistant Clinical Research Coordinator, Dermatology
Current Role at StanfordAssistant Clinical Research Coordinator
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Ruben Alvero, M.D.
Clinical Professor, Obstetrics & Gynecology - Reproductive Endocrinology & Infertility
BioDr. Ruben Alvero is Professor of Obstetrics and Gynecology at Stanford Medical School and is the Division Director of Reproductive Endocrinology and Infertility at the Lucille Packard Children’s Hospital. He is Board Certified in Obstetrics and Gynecology and in Reproductive Endocrinology and Infertility. He is a fellow of the American College of Obstetrics and Gynecology and the American College of Surgeons.
Following undergraduate training at Harvard College (BA, Economics, 1980), Dr. Alvero received his medical degree from the Uniformed Services University of the Health Sciences in Bethesda, Maryland in 1986. He completed his residency in Obstetrics and Gynecology at Walter Reed Army Medical Center (1990) and a fellowship in Reproductive Endocrinology and Infertility at the National Institutes of Health (NIH, 1995).
Dr. Alvero was the Division Director for Infertility Services at the National Naval Medical Center (Bethesda) and Walter Reed Army Medical Center and faculty in the NIH-sponsored fellowship in Reproductive Endocrinology and Infertility. Dr. Alvero remained a reserve Colonel in the U.S. Army Medical Corps until 2012 and during 27 years in the Army was mobilized several times for missions around the world, including service in Iraq, Kuwait, Mongolia, Germany and various locations in the United States.
Dr. Alvero was Professor of Obstetrics and Gynecology and Vice Chair for Education at the University of Colorado Health Sciences Center and the Director of the Assisted Reproductive Technologies, and founding member of the Center for Surgical Innovation. Dr. Alvero was Residency Program Director in Obstetrics and Gynecology at the University of Colorado. He was subsequently Division and Fellowship Director at Brown University.
The Council in Residency Education in Obstetrics and Gynecology awarded him its National Faculty Award for Excellence three times. He has been NIH-funded, most recently as part of the Reproductive Medicine Network.
Dr. Alvero is currently the Vice President of the Society for Reproductive Endocrinology, the national organization of fertility specialists and will take over as President in October 2020.
Dr. Alvero’s clinical interests include IVF, polycystic ovary syndrome, endometriosis and robotic surgery. Dr. Alvero’s research interests include non-invasive evaluation of embryo quality, cost-effectiveness analysis, and the role of critical thinking in medical education. A fluent Spanish-speaker, Dr. Alvero is also dedicated to improving the health of the Latinx community.
Dr. Alvero is happiest on the water, whether sailing or singles rowing. He is also constantly attempting to improve his mastery of Latin American cuisine. Most of all, he loves spending time with his family. -
Jurgis Alvikas
Clinical Assistant Professor, Surgery - General Surgery
BioDr. Jurgis Alvikas was born in Lithuania and moved to Chicago as a teenager. He graduated magna cum laude from the University of Illinois at Urbana–Champaign with a degree in Molecular and Cellular Biology and earned his M.D. from the University of Illinois at Chicago College of Medicine, where he was inducted into Alpha Omega Alpha. He then completed his General Surgery residency and a fellowship in Complex General Surgical Oncology at the University of Pittsburgh Medical Center.
He is passionate about caring for patients with hepato-biliary and gastrointestinal malignancies and about mentoring surgical trainees. Outside of medicine, he enjoys running, reading, and spending time with his family. -
Jennifer Alyono, MD, MS
Clinical Associate Professor, Otolaryngology (Head and Neck Surgery)
BioDr. Alyono completed her undergraduate degree in Chemistry as well as her master’s degree in Bioengineering at Stanford University. After completing medical school at the University of California, San Diego, she returned to Stanford where she completed both her residency in Otolaryngology-Head & Neck Surgery, as well as her fellowship in Otology/Neurotology and Skull base surgery. Clinically, Dr. Alyono specializes in adult and pediatric surgery for disorders of the middle ear, inner ear, ear canal, facial nerve, and skull base. This includes care for hearing loss, tympanic membrane perforations, cholesteatoma, glomus tumors, and vestibular schwannomas, among others. Her research interests lie in hearing in population health, quality of care, and technology in medicine.
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Zainab (Zaina) Alzawad
Clinical Assistant Professor, Emergency Medicine
BioDr. Zaina Alzawad is a clinical strategist with extensive experience advancing patient care through research, data-driven innovation, and interdisciplinary collaboration. She currently serves as a Clinical Development and Data Strategy Consultant in the Emergency Department at Stanford Health Care, where she leads and supports research and quality initiatives aimed at improving care delivery, operational efficiency, and clinical outcomes.
Dr. Alzawad’s research background is grounded in pediatric intensive care, with a growing focus on emergency care systems and innovation. She brings specialized expertise in psychometrics, quantitative and qualitative methodologies, and healthcare data analysis, supported by advanced training in measurement, statistics, and nursing science. She previously served as a Nurse Scientist at Stanford Health Care, where she led interdisciplinary studies and mentored clinical teams in research and evaluation. Driven by a passion for inquiry and impact, Dr. Alzawad actively mentors interdisciplinary teams and contributes to the design, implementation, and dissemination of studies that inform clinical practice. -
Derek F. Amanatullah, M.D., Ph.D.
Associate Professor of Orthopaedic Surgery
BioDerek F. Amanatullah, M.D., Ph.D., is an internationally recognized expert in hip and knee replacement. He helps patients with advanced arthritis and complex joint problems regain mobility and confidence. In addition to primary hip and knee replacements, he is frequently sought out for difficult revision surgeries, often fixing complications such as infection, instability, or persistent pain from prior procedures.
Dr. Amanatullah focuses on what truly lowers surgical risk: the skill, preparation, and coordination of the surgical team. He believes patients deserve care that relies on evidence and expert technique rather than placing the burden solely on weight or other patient factors. This patient-centered approach was highlighted by The New York Times.
As a researcher, he discovered an important new way certain infections can remain “hidden” in the body, shaping how surgeons diagnose and treat joint infections. His impact on the field earned him induction into The Knee Society, an honor held by fewer than 200 surgeons worldwide. Patients choose Dr. Amanatullah for his precision, innovation, and commitment to providing the safest, most effective joint care possible.
