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Current Postdoctoral Fellows

Alexa Barad

Alexa Barad, PhD, MS, RDN

Alexa is a postdoctoral scholar at the SPRC, mentored by Drs. Shoa Clarke and Tim Assimes. She earned her undergraduate degree in nutrition from Texas A&M University, followed by a Master of Science and Dietetic Internship at the University of Florida. In 2024, she completed her PhD in Nutrition at Cornell University, with minors in computational biology and biochemistry, where she conducted a precision nutrition study on the genetics of iron homeostasis. Her research explores the intersection of diet, genomics and epigenomics in cardiometabolic disease prevention, focusing on why individuals respond differently to various environmental exposures.

 

Andrea Krenek

Andrea Krenek, PhD, RDN

Andrea is a postdoctoral fellow at SPRC. She completed her doctorate in Nutritional Sciences at University of Florida in partnership with the National Institute of Diabetes and Digestive and Kidney Diseases. Her research focuses on dietary and culinary interventions. Andrea received her Bachelor of Science degrees in Nutrition and in Kinesiology at Texas A&M University. During this time, she worked on multiple nutrition protocols through two fellowships at the NIH Clinical Center and National Institute of Child Health and Human Development. She received her culinary training through Rouxbe Cooking School and completed dietetic training through The Ohio State University.

 

Sarah Tanvee

Sarah Tanveer, PhD

Sarah Tanveer is a Postdoctoral Fellow with the Meta-Research Innovation Center at Stanford (METRICS), working with Drs. John Ioannidis and Steven Goodman. She holds a PhD in Pharmaceutical Health Services Research from the University of Maryland, Baltimore, and a Master’s in Public Health Biology from Johns Hopkins Bloomberg School of Public Health. Her primary research focuses on drug safety. She is also interested in pharmaceutical policy, pharmacoepidemiology, pharmacovigilance, causal inference, and evidence synthesis methods to assess the safety of clinical interventions.

 

Alejandro Sandoval Lentisco

Alejandro Sandoval Lentisco, PhD

Alejandro Sandoval-Lentisco is a Postdoctoral Fellow at the Meta-Research Innovation Center at Stanford (METRICS), where he works with John P.A. Ioannidis and Steven Goodman. His doctoral research focused on transparency and risk of bias in evidence synthesis. Currently, he is exploring different meta-scientific topics such as the mechanisms of scientific self-correction.

Eunhye Lee

Eunhye Lee , PhD

Eunhye Lee is a postdoctoral fellow at SPRC, working with Dr. Ann Hsing. She earned her PhD in Community Health Sciences from the University of Illinois at Chicago and a master’s degree in social sciences from the University of Chicago. Her research focuses on enhancing our understanding of how to promote psychological resilience and well-being across diverse populations. She employs mixed methods to identify determinants of resilience and well-being to promote healthy and thriving lives.

 

Michael Royer

Michael Royer, PhD

Michael Royer is a third-year postdoctoral research scholar at the Stanford Prevention Research Center. His research focuses on the prevention of food insecurity among under-resourced populations who are at an increased risk of diet-related chronic disease. Dr. Royer teaches CHPR 237 – Hunger & Food Insecurity, which is a solutions-oriented class to inform and brainstorm solutions to address food insecurity. Dr. Royer was recently selected by the Stanford Cancer Institute to submit a K99/R00 research proposal to the National Cancer Institute for a study testing the extent to which Food is Medicine strategies mitigate the risk factors for cancer.

Katie Alegria, PhD

Vijaya Parameswaran, PhD

Vijaya Parameswaran MS, RD, PHD is a postdoctoral fellow at SPRC, mentored by Drs. David Maron and Christopher Gardner. She earned an MS in Nutrition Science from San José State University and a PhD in Management (Health Information Systems) from Case Western Reserve University. A registered dietitian focused on clinical technology implementation; her research and practice strengthen the nutrition care process for cardiometabolic disease prevention and management. Her research examines the design, validation, and integration of AI-enabled tools for dietary assessment, personalized counseling, and scalable clinical decision support to improve the delivery, accessibility, and effectiveness of cardiometabolic care.

Nora Satybaldiyeva, PhD, MPH

Nora Satybaldiyeva, PhD, MPH, is a postdoctoral fellow at the SPRC. She earned a PhD in Epidemiology from UCSD and SDSU, an MPH in Epidemiology from SDSU, and a BS in Biology from UCLA. More broadly, her research interests include drug policy and tobacco, cannabis, and emerging psychoactive substance use. Her current work examines the impact of state-level policies on tobacco and cannabis use among young adults. She recently received pilot grant funding from the University of Michigan's Center for the Assessment of Tobacco Regulations to examine associations between California’s flavored tobacco law and college students’ tobacco use. 

 

Jeong Namkung, PhD

I completed my PhD in Obstetrics and Gynecology at The Catholic University of Korea College of Medicine and have over 20 years of experience as a gynecologic surgeon. I currently serve as an Associate Professor at The Catholic University of Korea and as Director of the Robotic Surgery Center at Eunpyeong St. Mary’s Hospital, where I specialize in minimally invasive and robotic gynecologic surgery. My research has focused on robotic surgery outcomes and innovation. As a Visiting Scholar at METRICS, I am collaborating with Professor John Ioannidis on research examining reporting practices and incentive structures in minimally invasive and robotic surgery studies.

M. Javad Ershadmanesh, PhD

M.Javad Ershadmanesh, MD, is a Visiting researcher at SPRC. His work focuses on lifestyle-based strategies to support healthy aging, with emphasis on physical activity, musculoskeletal resilience, and behavior change. He contributes to research projects and manuscripts in lifestyle medicine and develops evidence-based educational content for health professionals and fitness trainers. He is the author of a recent peer-reviewed article on tart cherry juice and recovery, and he collaborates across nutrition, sleep, stress, and brain-health domains.