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Harvard Health Experts and Contributors

List of Experts

photo of Brad Manor, PhD

Brad Manor, PhD

Contributor

Brad Manor is an associate scientist at the Hinda and Arthur Marcus Institute for Aging Research; the associate director of the Mobility and Falls Translational Research Center; director of the Mobility and Brain Function Lab; and assistant professor of medicine at Harvard Medical School and Beth Israel Deaconess Medical Center. Dr. Manor’s career goal is to alleviate the burden of balance decline that often accompanies biological aging into senescence. As the director of the Mobility and Falls Program, he works to achieve this goal by directing interdisciplinary, translational research in the fields of human balance and rehabilitative medicine. His research combines biomechanical assessments of human movement with advanced medical imaging, noninvasive brain stimulation, and nonlinear signal processing techniques to identify the link between brain function, balance and falls in older adults; and design rehabilitative interventions that improve balance via optimization of brain function and exploitation of its adaptive properties.
Read more about Brad Manor, PhD
photo of Aaron Bernstein, MD, MPH

Aaron Bernstein, MD, MPH

Contributor

Aaron Bernstein, MD, MPH, is the co-director of the Center for Climate, Health, and the Global Environment at the Harvard T.H. Chan School of Public Health, and a pediatric hospitalist at Boston Children’s Hospital. In his work at the Center, Dr. Bernstein examines the human health effects of global environmental changes, such as climate change and the loss of biodiversity, with the aim of promoting a deeper understanding of these subjects among students, educators, policy makers, and the public. After receiving his bachelor’s degree in human biology from Stanford University, he received graduate degrees in medicine (MD) and public health (MPH), from the University of Chicago and Harvard University, respectively. He is a recipient of Stanford University’s Firestone Medal for Research and a Harvard University Zuckerman Fellowship. He serves on the American Academy of Pediatrics Council on Environmental Health Executive Committee, the Board of Scientific Counselors to the CDC’s National Center for Environmental Health/Agency for Toxic Substances and Disease Registry, and the board of directors of the US Green Building Council. An avid bicyclist, Dr. Bernstein pedals to and from work year-round. (Photo credit: Harvard University)
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John J. Ratey, MD

Contributor

John J. Ratey MD, is an associate clinical professor of Psychiatry at Harvard Medical School and an internationally recognized expert in Neuropsychiatry. He has published over 60 peer reviewed articles and 11 books, including the groundbreaking ADHD “Driven to Distraction” series, and “Spark, The Revolutionary New Science of Exercise and the Brain.” Honored by the Massachusetts Psychiatric Society for Advancing the Profession, Ratey lectures around the world in additional to maintaining a private practice in Cambridge, Massachusetts and Los Angeles, California. He enjoys running, weight training and hiking with his wife. Web site: Johnratey.com Facebook: https://www.facebook.com/JohnRateyMD/ Twitter: @jratey
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photo of Sabra L. Katz-Wise, PhD

Sabra L. Katz-Wise, PhD

Contributor

Sabra L. Katz-Wise, PhD (she/her) is an assistant professor in adolescent/young adult medicine at Boston Children’s Hospital, in pediatrics at Harvard Medical School, and in social and behavioral sciences at the Harvard T.H. Chan School of Public Health. She co-directs the Harvard SOGIE (Sexual Orientation and Gender Identity and Expression) Health Equity Research Collaborative. Her research investigates sexual orientation and gender identity development, sexual fluidity, health inequities related to sexual orientation and gender identity, and psychosocial functioning in families with transgender youth. Dr. Katz-Wise also advocates to improve workplace climate, medical education, and patient care for LGBTQ individuals, as co-chair for the BCH Rainbow Consortium on Sexual and Gender Diversity, as an HMS LGBT Advisory Committee member, and as HMS Sexual and Gender Minority Curriculum Development Fellow.
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photo of Sait Ashina, MD

Sait Ashina, MD

Contributor

Dr. Sait Ashina is an assistant professor of neurology and anesthesia at Harvard Medical School, and a director of the Comprehensive Headache Center at Beth Israel Deaconess Medical Center in Boston, MA. He is a diplomate of the American Board of Psychiatry and Neurology, and a diplomate in Headache Medicine of the United Council for Neurological Subspecialties. He is a member of the education committee of the International Headache Society. Dr. Ashina also served as a member of the International Headache Society's headache classification subcommittee for the third edition of the International Classification of Headache Disorders. His research interests include epidemiology of headache and chronic pain, quantitative sensory testing, human pain models, muscle pain, the role of photophobia in migraine pathophysiology, vestibular migraine, and structural brain lesions in migraine.
Read more about Sait Ashina, MD
photo of Ashwini Bapat, MD

Ashwini Bapat, MD

Contributor

Dr. Ashwini Bapat is thrilled to work as an attending palliative care physician at Massachusetts General Hospital. She received her undergraduate education at McGill University; her medical degree at Tufts University; and completed her internal medicine residency and fellowship in hospice & palliative medicine at Yale-New Haven Hospital. Her interests include the intersection of palliative care with medical education, telemedicine, narrative medicine, and global health.
Read more about Ashwini Bapat, MD
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Rose McKeon Olson, MD

Contributor

Rose McKeon Olson, MD, is a resident physician in internal medicine at Brigham and Women’s Hospital. She has special research interests in gender-based violence, social medicine, and global health equity.
Read more about Rose McKeon Olson, MD
photo of Eve Rittenberg, MD

Eve Rittenberg, MD

Contributor

Eve Rittenberg, MD, is assistant professor of medicine at Harvard Medical School and a primary care internist at the Fish Center for Women’s Health at Brigham and Women’s Hospital. Her interests include women’s health, trauma-informed care, and health equity. She is a 2018–2021 Robert Wood Johnson Foundation Clinical Scholars fellow, working with an interdisciplinary team on trauma-informed care. She is the past medical director of primary care at the Fish Center, and is actively engaged in medical student education in women’s health.
Read more about Eve Rittenberg, MD
photo of Jorg Dietrich, MD, PhD

Jorg Dietrich, MD, PhD

Contributor

Dr. Jorg Dietrich (MD, PhD, MMSc, FANA, FAAN) is the director of the Cancer & Neurotoxicity Clinic and Brain Repair Research Program at the Massachusetts General Hospital (MGH) Cancer Center, associate professor of neurology at Harvard Medical School, and attending physician at MGH. His clinical interests are management of patients with benign and malignant brain tumors, and neurologic complications of cancer therapy, including toxicity from radiation, chemotherapy, and immunotherapies. His research activities include clinical, translational, and basic research in the fields of brain tumor biology, biomarkers of cancer, neurotoxicity from cancer therapies, and brain repair mechanisms. Dr. Dietrich is the author of over 150 publications, including original research articles, review papers, book chapters, and other scientific contributions. His work has been supported by the National Institutes of Health, the American Cancer Society, the American Academy of Neurology, and other foundations.
Read more about Jorg Dietrich, MD, PhD
photo of John Garber, MD

John Garber, MD

Contributor

Over the past decade, John Garber, MD, has been deeply engaged in a dual program of clinical training in internal medicine and gastroenterology, while at the same time cultivating basic and translational research experience that has enabled me to focus on aspects of specific gastrointestinal diseases, such as inflammatory bowel disease (IBD), celiac disease and eosinophilic esophagitis (EoE)—diseases whose pathogenesis are increasingly recognized to arise at the intersection of epithelial biology, host immunology and response to pathogens and dysregulated innate immune/allergic signaling processes. My initial experience in the lab during my fellowship provided me with a fundamental framework for approaching epithelial cell biology and the role of cytoskeletal regulation in maintaining gut homeostasis and response to pathogens. This work naturally complemented a growing clinical practice focusing on patients with IBD, and helped set the stage for subsequent human immunology studies of celiac disease and EoE. In the spring of 2012, I joined the full-time faculty in the Gastrointestinal Unit at the Massachusetts General Hospital, and in 2014 I helped establish the Adult Eosinophilic Esophagitis Clinic at MGH, which brings together gastroenterologists, allergists and nutritionists, and represents the first such clinic in the U.S. that provides coordinated, multidisciplinary care to adult EoE patients while also serving as a central mechanism for organizing cutting-edge basic and translational research on the underlying biology of EoE. During this time, my own laboratory has worked toward establishing novel methods for detailed studies of tissue eosinophils, and our initial efforts have specifically focused on understanding the roles of eosinophil integrins and vascular adhesion molecules and the mechanisms of eosinophil-epithelial cross talk in the pathogenesis of EoE. Utilizing the truly special resource of a large cohort of EoE patients while taking advantage of the significant research expertise in human immunology and translational research available at MGH and across Harvard Medical School, we have a unique opportunity to advance our fundamental understanding of the pathogenesis and potential treatments of EoE.
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photo of Alyson Kelley-Hedgepeth, MD

Alyson Kelley-Hedgepeth, MD

Contributor

Alyson Kelley-Hedgepeth, M.D. is a full-time cardiologist and co-director of the Women’s Program at Lown Cardiovascular Group. She has extensive experience in managing coronary artery disease, heart failure and arrhythmias. Dr. Kelley-Hedgepeth is committed to providing personalized cardiovascular care with an emphasis on early disease detection and prevention. She specializes in cardiac lifestyle assessment and women’s cardiovascular disease. Her passion is preventative cardiovascular health and identifying how simple lifestyle changes promote healing and wellness. She trained in Internal Medicine at Massachusetts General Hospital and completed a Fellowship in Cardiology at Tufts Medical Center. Dr. Kelley-Hedgepeth is Board Certified in Cardiovascular Disease and Nuclear Cardiology. She is also a Diplomate of the American Board of Internal Medicine and Board Eligible in Echocardiography.
Read more about Alyson Kelley-Hedgepeth, MD
photo of Peter Zimetbaum, M.D.

Peter Zimetbaum, M.D.

Contributor

Peter Zimetbaum, MD is the Richard A. and Susan F. Smith Professor of Cardiovascular Medicine at Harvard Medical School and the Associate Chief and Director of Clinical Cardiology at the Beth Israel Deaconess Medical Center. Dr. Zimetbaum is a cardiac electrophysiologist with a particular interest in the clinical management of atrial fibrillation.
Read more about Peter Zimetbaum, M.D.
photo of Tien Jiang, DMD, MEd

Tien Jiang, DMD, MEd

Contributor

Dr. Tien Jiang received her bachelor of arts from Dartmouth College in linguistics and French. She then pursued dentistry at the Harvard School of Dental Medicine (HSDM). While a pre-doctoral student, Dr. Jiang became interested in dental education, and was selected as a fellow in the Academic Dental Careers Fellowship Program through the American Dental Education Association. After graduating cum laude and earning a doctor of dental medicine degree at HSDM, Dr. Jiang moved to the Midwest to specialize in prosthodontics at the University of Illinois at Chicago (UIC). During her residency, Dr. Jiang also completed a master of education in instructional leadership at the UIC College of Education. Her research involved evaluating UIC’s pre-doctoral small group learning curriculum, as well as a review of dental faculty retention and recruitment methods. Dr. Jiang returns to HSDM as an instructor in the department of oral health policy and epidemiology. She is conducting research and participating in activities at the Center for Integration of Primary Care and Oral Health, which is supported by Health Resources and Services Administration (HRSA) of the US Department of Health and Human Services (HHS). She is also involved with the Office of Global and Community Health on curricular reform in dental education in Vietnam. Furthermore, Dr. Jiang teaches in the pre-doctoral pre-clinic and clinic, and sees her own patients in HSDM’s faculty group practice. In the spring of 2019, Dr. Jiang was awarded the Massachusetts Dental Society’s Ten under 10 Award for her contributions to her profession, the community, and organized dentistry. At the same time, her students recognized her teaching efforts with HSDM’s Outstanding Teaching Faculty Award
Read more about Tien Jiang, DMD, MEd
photo of Melissa Bartick, MD

Melissa Bartick, MD

Contributor

Melissa Bartick, MD, MSc, is an internist and assistant professor of medicine at Harvard Medical School who has worked as a hospitalist since 1997. Her primary research interest is in breastfeeding and its implications for women’s and children’s health, public health, economics, and sudden infant death. She has published peer-reviewed articles on sleep in hospitalized patients, and hospital quality improvement. She has served in leadership positions in numerous statewide, national, and international organizations, including the American Public Health Association, the US Breastfeeding Committee, and the Academy of Breastfeeding Medicine. She has two adult children.
Read more about Melissa Bartick, MD
photo of Johanna Calderon, PhD

Johanna Calderon, PhD

Contributor

Johanna Calderon, PhD, is an Assistant Professor of Psychology in the Department of Psychiatry at Harvard Medical School and a research Associate at Boston Children’s Hospital. She works on the neurodevelopmental and psychiatric outcomes of pediatric populations, primarily youth with congenital heart disease. She earned her PhD in Neuropsychology from Paris Descartes Sorbonne University, in Paris, France and completed her post-doctoral research training at the French Institute of Health and Medical Research in France and at the Cardiac Neurodevelopmental Program at Boston Children’s Hospital.
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photo of Brandi Henson, PsyD

Brandi Henson, PsyD

Contributor

Brandi S. Henson, PsyD, is an Attending Psychologist in the Department of Psychiatry at Boston Children’s Hospital and a Clinical Instructor of Psychiatry at Harvard Medical School. Her clinical and research interests are in the neurodevelopmental trajectories of children and adolescents with congenital heart disease and associated genetic syndromes.
Read more about Brandi Henson, PsyD
photo of Janice Ware, PhD

Janice Ware, PhD

Contributor

Janice Ware, PhD, is Director of the Cardiac Neurodevelopmental Program; Director of the Child & Parent Program; and Senior Psychologist in the Developmental Medicine Center at Boston Children’s Hospital. She is also an Assistant Professor of Psychology and Developmental Medicine at Harvard Medical School. Dr. Ware specializes in the neurodevelopmental assessment and follow-up of young children with complex medical histories. She is known for her work in the fields of autism, cognitive and learning disabilities, congenital heart disease, early detection of severe mental health conditions, extreme prematurity, parent-infant mental health, school placement for children with special education needs, and velo-cardiofacial syndrome.
Read more about Janice Ware, PhD
photo of William Renthal, MD, PhD

William Renthal, MD, PhD

Contributor

William Renthal, MD, PhD, is the director of molecular genetics at the John R. Graham Headache Center. Dr. Renthal completed his MD, PhD and neurology residency at the University of Texas Southwestern Medical Center, and joined Brigham and Women’s Hospital for his final year of residency and postgraduate training in headache medicine. He is board certified in neurology and provides patients with comprehensive headache care including advanced diagnostics and personalized treatment plans, which may include behavioral/complementary therapy, medication and/or procedures (e.g. nerve blocks, Botox). In addition to clinical care, Dr. Renthal conducts neuroscience and genetics research at Harvard Medical School where he is interested in the genetic and epigenetic mechanisms underlying migraine. He has published over 30 peer-reviewed articles and book chapters on his research.
Read more about William Renthal, MD, PhD
photo of David Hepner, MD, MPH

David Hepner, MD, MPH

Contributor

David Hepner, MD, MPH, is medical director of the Weiner Center for Preoperative Evaluation at the Brigham and Women’s Hospital, and associate professor of anesthesia at Harvard Medical School. He is an associate faculty member of Ariadne Labs. His clinical and research interests in preoperative assessment, and his vision of a society in the area of preoperative assessment and its impact on surgical outcomes, led him to be one of the cofounders in 2005 of the Society for Perioperative Assessment and Quality Improvement, an international multidisciplinary society. Since then, he has been an active participant in improving surgical outcomes by sharing best practices, promoting research, and enhancing communication among health professionals across multiple disciplines. Dr. Hepner is a founding member of the Emergency Manual Implementation Collaborative, whose goal is to foster the dissemination and effective use of emergency checklists to enhance patient safety. He has helped lead expert panel interactive discussions on progress toward effective use of emergency manuals in hospitals across the country and helped develop an implementation toolkit. Dr. Hepner received his BA from Clark University, his MPH from Harvard School of Public Health, and his MD from Medical College of Wisconsin. His clinical training includes internship in medicine at the Washington University School of Medicine, and residency in anesthesiology and fellowship in obstetric anesthesia at the Hospital of the University of Pennsylvania.
Read more about David Hepner, MD, MPH
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Leo Kim, MD, PhD

Contributor

Leo Kim, MD, PhD, is a retina surgeon and a full time member of the Retina Service at the Massachusetts Eye and Ear Infirmary who has extensive experience in the management of retinal diseases associated with neovascularization or angiogenesis. These include diseases such as retinal vein occlusions, diabetic retinopathy, and age-related macular degeneration. After obtaining his MD/PhD from the Medical Scientist Training Program at Yale University School of Medicine, Dr. Kim attended University of Southern California/Doheny Eye Institute for his ophthalmology residency, where he was recognized with the Doheny Resident Research Award for two consecutive years. He also was awarded the Lillian and Henry Nesburn Award for Research Excellence and was chosen to participate in the 2008 Heed Ophthalmic Foundation Residents Retreat, an honor extended to only the top residents in the United States demonstrating exceptional potential in academic ophthalmology. Following residency, Dr. Kim continued at Doheny Eye Institute as a vitreoretinal surgery fellow and was recognized by the Heed Foundation with a highly prestigious fellowship grant.
Read more about Leo Kim, MD, PhD
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Todd Ellerin, MD

Contributor

Dr. Todd Ellerin has been director of infectious diseases and vice chairman of the department of medicine at South Shore Hospital in Weymouth, MA for 17 years. He is an associate physician at Brigham and Women’s Hospital in Boston and an instructor in medicine at Harvard Medical School. Additionally, he serves as medical director of the Weymouth Department of Public Health, and was the medical technical specialist for SARS, H1NI, Ebola, and now 2019-nCoronavirus at South Shore Health.
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photo of Irun Bhan, MD

Irun Bhan, MD

Contributor

Irun Bhan, MD, is a transplant hepatologist and physician scientist at Massachusetts General Hospital and an instructor at Harvard Medical School. He earned his bachelor’s degree in biophysics from Johns Hopkins University and his MD degree from the Harvard-MIT Health Sciences and Technology program at Harvard Medical School, where he worked as a Howard Hughes Medical Institute fellow. He subsequently completed his residency training in internal medicine at Columbia University, where he served as Chief Resident. He further trained as a clinical fellow in gastroenterology and advanced/transplant hepatology at Massachusetts General Hospital. Dr. Bhan specializes in the full spectrum of acute and chronic liver diseases with a particular interest in transplant for oncologic indications. His research interests include the development of blood-based biomarkers in chronic liver disease and hepatocellular carcinoma.
Read more about Irun Bhan, MD
photo of Emily Reiff, MD

Emily Reiff, MD

Contributor

Dr. Emily Reiff is a maternal fetal medicine physician at Brigham and Women’s Hospital (BWH), specializing in high-risk obstetrics, and a clinical instructor at Harvard Medical School. Dr. Reiff completed a residency in obstetrics and gynecology at BWH and Massachusetts General Hospital, and a fellowship in maternal fetal medicine at Duke University. She currently sees pregnant patients in the maternal fetal medicine offices at BWH in Boston and Foxboro, and performs consultations in the Center for Fetal Medicine. Academically, she is interested in care redesign through quality improvement initiatives. She lives in Wellesley with her husband and daughter.
Read more about Emily Reiff, MD
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James Naples, MD

Contributor

James Naples, MD, is a physician at Beth Israel Deaconess Medical Center, and a clinical instructor at Harvard Medical School in Boston, MA. He earned his medical degree from the University of Connecticut School of Medicine, and stayed there to complete his residency training in otolaryngology–head and neck surgery. He completed a fellowship in neurotology and skull base surgery at the Perelman School of Medicine at the University of Pennsylvania. He has diverse clinical interests that include hearing loss and cochlear implants, skull base surgery, vestibular disorders, and medical history. In addition to his clinical practice, he has performed research in all of these areas. He hopes to integrate his research ideas to improve care and outcomes for all patients with ear-related clinical disorders.
Read more about James Naples, MD
photo of Jennifer Lin, MD

Jennifer Lin, MD

Contributor

Jennifer Lin, MD, co-directs the Melanoma Risk and Prevention Clinic, and the Multicultural Dermatology clinic at Brigham and Women’s Hospital. She also is the Dermatology Lead of the Melanoma Program at Dana Farber Cancer Institute. She has authored several papers related to melanoma as well as on lasers and light-based therapies. Dr. Lin received her medical degree from Harvard Medical School. She completed her residency at the Harvard Residency Program, and completed her fellowship at Massachusetts General Hospital.
Read more about Jennifer Lin, MD
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