School of Medicine
Showing 3,151-3,200 of 5,032 Results
-
Aussama Nassar, MD, MSc,FACS, FRCSC
Clinical Associate Professor, Surgery - General Surgery
BioDr. Nassar is board-certified in both General Surgery and Surgical Critical Care in the United States and Canada, underscoring his exceptional expertise in these fields. He holds a Master of Science in Health Science Education from McMaster University, Canada, further solidifying his strong academic foundation.
Currently, Dr. Nassar serves as the inaugural Director of the Emergency General Surgery Service and the Director of the Surgical Critical Care Fellowship Program at Stanford University. He is also the founder and director of the Surgery Resident Coaching Program. With over 12 years of clinical and academic experience at premier tertiary care referral centers across North America, Dr. Nassar brings unparalleled knowledge and leadership to his roles.
Dr. Nassar's clinical interests include trauma, acute care surgery, critical care, and a particular focus on abdominal wall reconstruction. As a dedicated clinician-educator, he is a certified simulation educator and serves as a course director for ATLS and ASSET programs. His research is centered on advancing surgical education, with an emphasis on fostering the development of non-technical skills in surgical training.
In addition to his educational initiatives, Dr. Nassar is actively engaged in developing innovative assessment tools for surgical trainees and addressing burnout among physicians and healthcare professionals. With a strong national and international presence, Dr. Nassar continues to shape the future of surgical education and healthcare delivery through his leadership, research, and advocacy. -
Kalpana Isabel Nathan
Adjunct Clinical Professor, Psychiatry and Behavioral Sciences
BioKalpana Nathan, MD is an adjunct clinical professor, Psychiatry and Behavioral Sciences at the Stanford University School of Medicine. After completion of residency and research fellowship at Stanford, she served 4 years at the San Francisco General Hospital/UCSF, gaining experience in the areas of substance use, HIV and public health. She worked at Palo Alto VA for more than a couple of decades. She served as chief medical director at Mental Health and Addiction services, El Camino Health for two and a half years, and later was the Executive Medical Director of Custody Behavioral Health at Santa Clara County. She is a certified physician executive. She has worked and taught in various settings, both inpatient and outpatient, as well as private and public sectors. She is board certified in General, Addiction and Forensic Psychiatry, as well as Lifestyle Medicine. Her interests include wellness and self-care for physicians, women's health, health creation and resiliency building for the community. She is a certified meditation teacher, has completed sprint and Olympic triathlons, and enjoys traveling around the world. She received the outstanding community clerkship preceptor award in 2010 and the Arthur L. Bloomfield Award in Recognition of Excellence in the Teaching of Clinical Medicine in 2015 at the Stanford University School of Medicine.
Recent Publications:
1. Yen Li, M, Mata C, Nathan K: Is Life Unlivable for Youth in Post-DEI America?: Understanding Rising Suicide Rates Across Diverse Youth Groups Through Traditional Suicide Paradigms. Healthcare 2025 Oct, 13(20), 2585 https://doi.org/10.3390/healthcare13202585
2. Tran BX, Nguyen TT, Boyer L, Fond G, Auquier P, Nguyen HSI,Ha Thi Nhi Tran HTN, Nguyen HM, Choi J, Le HT, Latkin CA, Nathan KI, Husain SF, et al: Differentiating people with schizophrenia from healthy controls in a developing country: An evaluation of portable functional near infrared spectroscopy (fNIRS) as an adjunct diagnostic tool. Frontiers of Psychiatry 2023 Jan 26; vol 14
3. Tatum, J, Nathan, K: The USA. Lancet Psychiatry 2021, 8(5):365-366
4. Nathan N & Nathan KI: Suicide, Stigma, and Utilizing Social Media Platforms to Gauge Public Perceptions. Front. Psychiatry 2020 January 13
5. Tran BX, Nathan KI, Phan HT, Hall BJ, Vu GT et al: A Global Bibliometric Analysis of Services for Children Affected by HIV/Acquired Immune Deficiency Syndrome: Implications for Impact Mitigation Programs (GAPRESEARCH). AIDS Rev. 2019 Oct 3;21(3).
6.Lee A, Nathan KI: Understanding Psychosis in a Veteran With a History of Combat and Multiple Sclerosis. Fed Pract. 2019 Jun;36(Suppl 4):S32-S35.
7. Tran BX, Ha GH, Vu GT, Nguyen LH, Latkin CA, Nathan K, McIntyre RS, Ho CS, Tam WW, Ho RC: Indices of Change, Expectations, and Popularity of Biological Treatments for Major Depressive Disorder between 1988 and 2017: A Scientometric Analysis. Int J Environ Res Public Health. 2019 Jun 26;16(13) -
Yasodha Natkunam, M.D., Ph.D
Ronald F. Dorfman, MBBch, FRCPath Professor of Hematopathology
Current Research and Scholarly InterestsMy research interests focus on the identification and characterization of markers of diagnostic and prognostic importance in hematolymphoid neoplasia.
-
Vaidehi Natu
Physical Sci Res Scientist
Current Research and Scholarly InterestsDr. Vaidehi Natu is a developmental neuroscientist. Her research program aims to study how the human brain matures from infancy to adulthood, as it acquires new life skills and behaviors: What are the origins of the cellular and molecular mechanisms of brain development during infancy? How does the trajectory of neural mechanisms unfold during development, as school-aged children acquire complex skills such as reading or face recognition? What are some of the parallels in brain development across primate species? What changes occur in the brain in developmental disorders such as autism, multiple sclerosis, and dyslexia?
She uses a multi-modal approach by combining various neuroimaging techniques including functional magnetic resonance imaging (fMRI), quantitative MRI (qMRI), and diffusion MRI (dMRI) as well as behavioral observations, histology, comparative methods across humans and macaques, and intracranial electroencephalography. Combining complementary techniques provides a unified understanding of how the brain’s anatomy, function, and behavior co-develop to achieve complex human skills. -
Manchula Navaratnam
Clinical Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Manchula Navaratnam is a Clinical Professor of Anesthesiology, Perioperative, and Pain Medicine at Stanford University, specializing in Pediatric Cardiac Anesthesia. With over 16 years of expertise in the perioperative care of pediatric patients with complex cardiac conditions, Dr. Navaratnam serves as the anesthesiology lead for pediatric cardiac transplantation, ventricular assist devices, single ventricle physiology and perioperative hemostasis management.
Dr. Navaratnam’s research includes pivotal work on left ventricular outflow tract velocity time integral (LVOT VTI) as a measure of ventricular function, now widely utilized at Stanford Children’s Hospital. Dr Navaratnam has led multidisciplinary clinical studies to improve care for single ventricle physiology patients, developed standardized pathways for perioperative hemostasis management, and recently contributed to an FDA-funded multicenter trial investigating pulse oximetry accuracy in congenital heart disease patients with darker skin tones.
As a dedicated mentor and educator, Dr. Navaratnam founded and directs the Pediatric Cardiac Anesthesia Learning (PCAL) workshop for fellows nationwide and leads Stanford’s undergraduate course, “Mending a Broken Heart.” Dr Navaratnam's mentorship has supported numerous trainees and collaborators, resulting in award-winning presentations and impactful research contributions. Dr. Navaratnam is an associate editor for Pediatric Anesthesia, an active peer reviewer for leading journals, a coach and board member for the Congenital Cardiac Anesthesia Society, and an active contributor to national committees and task forces advancing faculty development and the field of pediatric cardiac anesthesia.
Dr. Navaratnam's mission is providing exceptional and compassionate patient care while training the next generation of leaders in the field. -
Ashwin K Nayak
Clinical Assistant Professor, Medicine
Current Research and Scholarly InterestsConversational AI, Large Language Models, Digital Therapeutics
-
Jayakar V. Nayak, MD, PhD
Associate Professor of Otolaryngology - Head & Neck Surgery (OHNS) and, by courtesy, of Neurosurgery
On Partial Leave from 09/16/2025 To 04/30/2026Current Research and Scholarly InterestsUpper Airway Stem Cell Biology, Fate, and Repair/Regeneration of the Airway Epithelium to treat Upper and Lower Airway Disorders
-
Rosamond Naylor
William Wrigley Professor, Professor of Environmental Social Sciences, Senior Fellow at the Woods Institute, and at the Freeman Spogli Institute, Emerita
Current Research and Scholarly InterestsResearch Activities:
My research focuses on the environmental and equity dimensions of intensive food production systems, and the food security dimensions of low-input systems. I have been involved in a number of field-level research projects around the world and have published widely on issues related to climate impacts on agriculture, distributed irrigation systems for diversified cropping, nutrient use and loss in agriculture, biotechnology, aquaculture and livestock production, biofuels development, food price volatility, and food policy analysis.
Teaching Activities:
I teach courses on the world food economy, food and security, aquaculture science and policy, human society and environmental change, and food-water-health linkages. These courses are offered to graduate and undergraduate students through the departments of Earth System Science, Economics, History, and International Relations.
Professional Activities:
William Wrigley Professor of Earth Science (2015 - Present); Professor in Earth System Science (2009-present); Director, Stanford Center on Food Security and the Environment (2005-2018); Associate Professor of Economics by courtesy (2000-present); William Wrigley Senior Fellow, Freeman Spogli Institute for International Studies and the Woods Institute for the Environment (2007-2015); Trustee, The Nature Conservancy CA program (2012-present); Member of the Scientific Advisory Board for the Beijer Institute for Ecological Economics in Stockholm (2011-present), for the Aspen Global Change Institute (2011-present), and for the Aldo Leopold Leadership Program (2012-present); Aldo Leopold Leadership Fellow in Environmental Science and Public Policy (1999); Pew Fellow in Conservation and the Environment (1994). Associate Editor for the Journal on Food Security (2012-present). Editorial board member for Aquaculture-Environment Interactions (2009-present) and Global Food Security (2012-present). -
Rahim Nazerali, MD, MHS, FACS
Clinical Associate Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Nazerali specializes in complex reconstruction, microsurgery, and aesthetic and cosmetic surgery. He excels at breast reconstruction using free autologous tissue and performs advanced techniques such as the minimally invasive superficial inferior epigastric artery (SIEA) flap, as well as the deep inferior epigastric artery perforator (DIEP) flap procedure. In addition to autologous reconstruction, Dr. Nazerali utilizes the latest techniques in implant-based breast reconstruction. His techniques and results have made him a leading instructor and lecturer at national and international institutions, societies and conferences.
In addition to breast reconstruction, Dr. Nazerali performs both aesthetic as well as whole body reconstructive procedures. He has a busy aesthetic practice focusing on breast augmentation, face and body rejuvenation as well as body contouring. In his reconstructive practice, he specializes in abdominal wall reconstruction as well as post-trauma tissue transfers. For every patient in his care, his goal is to optimize restoration of both form and function.
To help advance the field of plastic and reconstructive surgery, Dr. Nazerali conducts research into outcomes of breast reconstruction, augmentation, and reduction. Dr. Nazerali has published widely: well over 100 journal articles and conference proceedings. Topics include breast reconstruction after radiation; advances in surgical technique; and, the use of virtual, augmented, and mixed reality systems in plastic surgery practice and education. His work has appeared in Annals of Plastic Surgery, Plastic and Reconstructive Surgery, Surgery, the European Journal of Plastic Surgery, the Aesthetic Surgery Journal, and elsewhere.
Dr. Nazerali focuses not only on improving his patient’s lives but also our ability to deliver care as an institution. He is on the Medical Executive Council at Stanford Healthcare, serves as a committee member in the American Society of Plastic Surgeons as well as the California Society of Plastic Surgeons. In his spare time, he volunteers his time to provide reconstructive surgical services to adults and children in need worldwide. -
Joel Neal, MD, PhD
Professor of Medicine (Oncology)
Current Research and Scholarly InterestsI am a thoracic oncologist who cares for patients with non-small cell lung cancer, malignant mesothelioma, and other thoracic malignancies. I design and conduct clinical trials of novel therapies in collaboration with other researchers and pharmaceutical companies. These generally focus on two areas, 1) targeted therapies against particular mutations in cancers (for example EGFR, ALK, ROS1, HER2, KRAS, MET, and others) and 2) the emerging field of immunotherapy in cancer, using anti PD-1/PD-L1 therapies in combination with other agents, and also developing cellular therapies. I also collaborate with other researchers on campus to apply emerging technologies to cancer therapy, for example, circulating tumor DNA detection. Additionally, in my role as the Cancer Center IT Medical Director, I coordinate projects relating to our use of the electronic health record to improve provider efficiency and facilitate patient care.
-
Lindsey Negrete
Clinical Assistant Professor, Radiology
BioStanford University, BS 2010
Brown University, MD 2015
Scripps Transitional Year, Intern
University of California San Diego, Residency -
Robert Negrin
Professor of Medicine (Blood and Marrow Transplantation and Cellular Therapy)
Current Research and Scholarly InterestsOur labaratory focuses on the study of immune recognition by T and NK cells with special emphasis on graft vs host disease and graft vs tumor reactions. We utilize both murine and human systems in an effort to enhance graft vs tumor reactions while controlling graft vs host disease. We have developed bioluminescence models in collaboration with the Contag laboratory to study the trafficking of immune effector cells with a special emphasis on NK, T and regulatory T cells.
-
Liesl Nel-Themaat, PhD, HCLD, MBA
Clinical Associate Professor, Obstetrics & Gynecology - Reproductive Endocrinology & Infertility
BioDr. Nel-Themaat has been in the field of assisted reproduction for more than 20 years, with the past 11 years in clinical IVF. She possesses a unique combination of a strong academic background, broad technical experience and extensive leadership, and management training. Through a multi-dimensional approach, she has helped to improve patient care and outcomes in Assisted Reproductive Technology (ART).
Dr. Nel-Themaat was most recently employed as the Regional IVF Lab Director for Shady Grove Fertility in Colorado and served as the IVF Lab Director at University of Colorado Advanced Reproductive Medicine. She received her PhD from LSU, Baton Rouge and recently completed an Executive Masters of Business Administration program at the University of Denver.
Her goal is to advance the field “by building strong, high performing lab teams, by carefully evaluating and adapting appropriately to industry trends, by training and educating the current and next generations, and by participating in collaborative research that enhances our understanding of reproduction.”
In her free time, Dr. Nel-Themaat loves to spend time with her husband and two children, preferably in nature. With them, she enjoys skiing, hiking, biking, swimming and anything nature has to offer. She likes to cook out and introduce our American friends to South African cuisine, especially a “braai,” which is their version of a BBQ. During school holidays, she likes to visit family in South Africa, go on safari and enjoy the beautiful beaches. Dr. Nel-Themaat enjoys jamming on the piano, guitar, drums and microphone with her family. She also considers herself very competitive and loves playing and watching sports or playing board games. -
Drew Nelson
Professor of Mechanical Engineering, Emeritus
BioResearch involves development of improved methods for predicting the fatigue life of engineering materials, incuding the effects of manufacturing processes, and investigation of new approaches in the field of experimental mechanics, such as determination of residual stresses using optical methods.
-
Joanna Nelson
Clinical Associate Professor, Medicine - Infectious Diseases
BioDr. Nelson is a board certified Infectious Disease specialist. She specializes in the treatment of immunocompromised patients, including patients who have had solid organ or bone marrow transplantation or who have malignancy undergoing chemotherapy. She also has a special interest in caring for patients with Cystic fibrosis or who have had a lung transplant as well as Nontuberculous mycobacterial Infections.
-
Lorene Nelson, PhD, MS
Professor of Epidemiology and Population Health, Emerita
Current Research and Scholarly InterestsPrimary research interests:
- genetic, environmental and lifestyle determinants of neurodegenerative disorders
(amyotrophic lateral sclerosis, multiple sclerosis, Parkinson's disease, migraine)
- innovative study design and data ecosystems in clinical and public health
Primary educational interests:
- Training of next generation scientists in advanced data science and analytic methods
in population, social, and behavioral health sciences. -
Carter Neugarten
Clinical Associate Professor, Medicine - Primary Care and Population Health
BioDr. Neugarten is a recognized healthcare leader and national expert at the crossroads of palliative care and emergency medicine. He has published widely in this field, and his initiatives focus on enhancing upstream palliative care accessibility, resource optimization in healthcare, and harnessing telemedicine's potential in providing care.
His contributions include co-chairing a national committee that fosters innovation by merging these fields, and he has received grant funding to study the impact of palliative care referral from the ED.
Dr. Neugarten also has an established footprint in medical education, having held multiple formal teaching roles throughout his career. -
Andrew Nevins
Clinical Professor, Medicine - Infectious Diseases
Current Research and Scholarly InterestsClinical general infectious diseases. Medical education.
-
Jennifer A. Newberry
Associate Professor of Emergency Medicine (Adult Clinical/Academic)
On Partial Leave from 11/03/2025 To 03/06/2026Current Research and Scholarly InterestsInterests include global emergency medicine research, emergency obstetric and neonatal care in low- and middle-income countries, gender-based violence, and the intersection of emergency medicine, social justice, and development goals.
-
Aaron Newman
Associate Professor of Biomedical Data Science
Current Research and Scholarly InterestsOur group develops computational strategies to study the phenotypic diversity, differentiation hierarchies, and clinical significance of tumor cell subsets and their surrounding microenvironments. Key results are further explored experimentally, both in our lab and through collaboration, with the ultimate goal of translating promising findings into the clinic.
-
Jordan L. Newmark, MD, QME
Adjunct Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine
Current Research and Scholarly InterestsClinical Interests:
Chronic & perioperative pain, interdisciplinary & procedural pain treatment, trauma anesthesia, spine surgery anesthesia, CRPS, nerve injury
Academic Interests:
- Graduate & undergraduate medical education, medical simulation & immersive learning, performance assessment & evaluation, adult learning theory, clinician selection processes, patient safety & quality of care, health equity -
William Newsome
Harman Family Provostial Professor and Professor of Neurobiology and, by courtesy, of Psychology
Current Research and Scholarly InterestsNeural processes that mediate visual perception and visually-based decision making. Influence of reward history on decision making.
-
Jessica Ng, MD
Clinical Assistant Professor, Adult Neurology
BioDr. Ng is a board-certified, fellowship-trained neurologist with Stanford Health Care Movement Disorders Center and Stanford Health Care Neurology in Pleasanton. She is also a clinical assistant professor in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine.
Dr. Ng provides comprehensive care for people with movement disorders. She diagnoses and treats a wide range of movement disorders, including ataxia, atypical parkinsonism, dystonia, essential tremor, Huntington’s disease, and Parkinson’s disease. She specializes in assessing patients for minimally invasive treatments, including botulinum toxin therapy, deep brain stimulation (DBS), and MR-guided focused ultrasound (MRgFUS).
Dr. Ng’s research interests include assessing treatment and diagnostic tools for Parkinson’s disease and other movement disorders.
Dr. Ng has presented to her peers at international and national meetings, including the International Congress of Parkinson’s Disease and Movement Disorders, the American Academy of Neurology, and the American Epilepsy Society. She is also a passionate clinician educator who has given lectures to medical students, physician assistant students, residents, and community physicians.
Dr. Ng is a member of the American Academy of Neurology and the International Parkinson and Movement Disorder Society. -
Christine Ngaruiya
Associate Professor of Emergency Medicine (Adult Clinical Academic)
BioChristine Ngaruiya, MD, MSc, DTM&H is the Director of the Stanford EM International Global and Population Health Section (SEMI), and Associate Professor, in the Stanford Department of Emergency Medicine (DEM).
Previously she was on faculty in the Department of Emergency Medicine (DEM) at Yale University. She completed the Global Health and International Emergency Medicine fellowship in the Yale DEM in 2015, while also matriculating with a Master of Science and Diploma in Tropical Medicine and International Health from the London School of Hygiene and Tropical Medicine. Her research interests center on: noncommunicable diseases (NCDs), barriers to care, community-based participatory research and implementation science with a particular focus on Africa.
Some past honors include: the Emergency Medicine Resident’s Association (EMRA) Augustine D’Orta Award for outstanding community and grassroots involvement, Harambe Entrepreneur Alliance Associate and the 2014 Harambe Pfizer Fellow Award for social entrepreneurship, the 2016 University of Nebraska Outstanding International Alumnus award, the 2018 Young Physician award of the Global Emergency Medicine Academy at the Society for Academic Emergency Medicine, the 2019 Yale School of Medicine Leonard Tow Humanism in Medicine for clinical excellence and compassionate care, being selected as 1 of 30 WomenLift Health Women Leaders in Global Health in 2021, 1 of 25 US Schmidt Futures International Strategy Forum fellows in 2023, and as 1 of 100 National Academy of Sciences US-Africa Frontiers in STEM fellows in 2024.
She has held several national and international leadership positions including with: the Society of Academic Emergency Medicine, the Consortium of Universities for Global Health (CUGH) as current co-chair of the Research Committee (2024-2026), the African Federation for Emergency Medicine (AFEM) and WomenLift Health. She was also a founding member of the Yale Network for Global Noncommunicable Disease (NGN). Her work has been funded by Yale University, the NIH (top 100 in Emergency Medicine), Gates Foundation, World Bank, USAID, the American Psychiatric Association, among others. She has served on a number of NIH panels related to global NCD topics, and has lectured both nationally and internationally on the same. Currently, she is a member of a World Health Organization (WHO) group developing an implementation science research agenda for global NCDs.
She is the global NCD section editor for PLOS Global Public Health, and also a fervent writer in the non-traditional sphere on global NCDs. To that end, she was selected as one of twenty Yale Public Voice Fellows for 2015-2016 from across campus with more than 20 publications in outlets such as Time, Huffington Post, Medium, and The Hill on the topic. -
Dung Nguyen
Clinical Professor, Surgery - Plastic & Reconstructive Surgery
BioDr. Dung H Nguyen is currently the Director of Breast Reconstruction at the Stanford Women’s Cancer Center, Director of Microsurgery and Microsurgery Fellowship, and the Director of Adult Plastics Clinic at Stanford Healthcare. She graduated with a Bachelor of Science in Biochemistry and highest academic honor and distinction from U.C. Davis. She earned a Pharm.D degree from U.C.S.F. School of Pharmacy and a MD degree from U.C.S.D. She then did a residency in general surgery and a residency in Plastic and Reconstructive Surgery at the University of Southern California (USC) Medical Center. She further completed a fellowship in microsurgery from Chang Gung Memorial Hospital in Taiwan, one of the largest reconstructive surgery centers in the world. She was recruited to Stanford from Cedar Sinai Medical Center in 2012, and is currently a Clinical Professor in the Division of Plastic and Reconstructive Surgery at Stanford University.
Dr. Nguyen specializes in aesthetic and reconstructive breast surgery, surgical treatment of lymphedema including vascularized lymph node transfer and lymphaticovenous anastomosis, and complex tissue reconstruction utilizing microsurgery and supermicrosurgery. She also has interest in cosmetic surgery, including facial rejuvenation and body contouring procedures.
In addition to her clinical commitment, Dr. Nguyen has basic science and clinical research interests in lymphedema and breast reconstruction. She has published articles in peer review journals, presented at national and international professional meetings and has authored book chapters in various plastic surgery textbooks. She also enjoys volunteering on overseas medical missions and participating in medical charity activities. -
Judy Nguyen, MD
Clinical Assistant Professor, Radiology - Rad/Nuclear Medicine
BioI am originally from San Diego, California where I attended medical school and did a surgical internship at UCSD. While there, I was exposed to the field of Nuclear Medicine and became fascinated by molecular imaging and the burgeoning field of theragnostics. I chose the Nuclear Medicine residency program at Stanford because it is one of the premier molecular imaging programs in the world, where some of the best known physicians and scientists in the field are located. Situated in Silicon Valley and rooted in a culture of collaboration, Stanford reaps the benefits from being at the intersection of technology, innovation, engineering and science to produce ground breaking research that continually pushes the imagination and limits of Nuclear Medicine. I am honored to be able to pursue my clinical interests and further my career in this environment.
