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Harvard Health Experts and Contributors

List of Experts

photo of Sara W. Dong, MD

Sara W. Dong, MD

Contributor

Dr. Sara W. Dong is a combined adult and pediatric infectious diseases fellow at Beth Israel Deaconess Medical Center and Boston Children’s Hospital. She earned her MD from the Medical University of South Carolina. She completed her internal medicine and pediatrics residency and chief residency at Ohio State University Wexner Medical Center and Nationwide Children’s Hospital. Her academic interests include transplant and global health.
Read more about Sara W. Dong, MD
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Lawrence Epstein, MD

Contributor

Lawrence Epstein, MD is an Assistant Professor in Medicine at Harvard Medical School, the Assistant Medical Director of the Sleep Disorders Service and Program Director for the sleep medicine fellowship program at Brigham and Women’s Hospital in Boston. He is board certified in Internal Medicine, Pulmonary Diseases, Critical Care Medicine and Sleep Medicine. He is a Past President of the American Academy of Sleep Medicine and the Medical Editor of the Harvard Medical School Special Health Report: Improving Sleep.
Read more about Lawrence Epstein, MD
photo of Syed Moin Hassan, MD

Syed Moin Hassan, MD

Contributor

Dr. Hassan is currently a sleep medicine fellow at Brigham and Women’s Hospital and Massachusetts General Hospital, and a research fellow at Harvard Medical School. He is also the recipient of the Academic Sleep Pulmonary Integrated Research/Clinical Fellowship (ASPIRE) from the American Thoracic Society. His research interests include sleep-disordered breathing and pulmonary hypertension.
Read more about Syed Moin Hassan, MD
photo of Kathryn Hatch, MD

Kathryn Hatch, MD

Contributor

Kathryn M. Hatch, MD is the Director of Refractive Surgery at Massachusetts Eye and Ear and the Site Director of Mass. Eye and Ear Waltham. She is an Assistant Professor of Ophthalmology at Harvard Medical School. She is an accomplished surgeon in all-laser refractive surgery techniques including, LASIK and PRK, complex and refractive laser-assisted cataract surgery with intraoperative aberrometry, corneal crosslinking and Intacs (intrastromal corneal ring segments) for keratoconus and post-LASIK ectasia as well as advanced techniques in corneal transplant surgery. Since joining the staff, she has assisted in bringing new technologies to Mass. Eye and Ear including refractive laser-assisted cataract surgery with intraoperative aberrometry, collagen crosslinking, inlays for presbyopia, the Visumax laser (the only laser which performs the small incision lenticule extraction procedure, or SMILE, for the refractive surgical treatment of myopia), and lipiflow for dry eye disease. Dr. Hatch is considered a key opinion leader in the treatment of keratoconus and has been performing collagen crosslinking since 2011. She was an investigator in phase IV clinical trial in which she was performing minimally invasive crosslinking for greater than 5 years. In 2016, she became the first person at Mass. Eye and Ear to perform crosslinking with the FDA-approved technology and is one of the busiest crosslinking specialists in the US. She is embarking in a research project to assist in developing a screening tool for keratoconus and post-LASIK ectasia. Additionally, Dr. Hatch has experience in the treatment of ocular surface disease and dry eye, corneal dystrophies and anterior segment reconstruction. She performs cutting-edge corneal transplantation surgery, including both full thickness penetrating keratoplasty and partial thickness transplant surgery, DSAEK (Descemet Stripping Automated Endothelial Keratoplasty), DMEK (Descemets Membrane Endothelial Keratoplasty), and DALK (Deep Anterior Lamellar Keratectomy). She also performs IEK (Intralase Enabled Keratoplasty) and IE-DALK (Intralase Enabled Deep Anterior Lamellar Keratoplasty) and was the first eye surgeon in New England to perform IE-DALK. Dr. Hatch is an active fellow of the American Academy of Ophthalmology and a diplomat of the American Board of Ophthalmology. She is a member of several organizations including the New England Ophthalmic Society, the Cornea Society, the American Society of Progressive Enterprising Surgeons, the American European College of Ophthalmic Surgeons and the Massachusetts Medical Society. She has been in invited speaker at several regional, national and international meetings. In 2016 and 2017, Dr. Hatch was selected as one of the 300 Premier Innovators in refractive cataract surgery in the United States by Ocular Surgery News.
Read more about Kathryn Hatch, MD
photo of Maureen Leonard, MD, MMSc

Maureen Leonard, MD, MMSc

Contributor

Maureen Leonard, MD, MMSc, is the Clinical Director of the Center For Celiac Research And Treatment at MassGeneral Hospital for Children (MGHfC) and an Assistant Professor of Pediatrics at Harvard Medical School (HMS). She sees adult and pediatric patients with celiac disease, non-celiac gluten sensitivity, and other gluten-related disorders. Dr. Leonard obtained her medical degree from New York Medical College, completed her residency in general pediatrics at Tufts Medical Center and completed her fellowship in Pediatric Gastroenterology at MGHf C. Dr. Leonard received a Master’s Degree in Clinical and Translational Investigation from HMS. Dr. Leonard’s research is focused on predicting and preventing celiac disease through the NIH-funded Celiac Disease; Genomic, Environment, Microbiome and Metabolomic Study. Dr. Leonard’s other work include identifying biomarkers that can predict intestinal healing in pediatric patients with celiac disease, building translational models capable of predicting autoimmune disease in high risk individuals, and working with industry collaborators to create and perform clinical trials aimed at treating celiac disease. Dr. Leonard currently holds funding from the NIH (K23DK122127) and has previously been funded by the NIH (F32DK109620), Nutrition Obesity Research Center at Harvard, and the Thrasher Research Foundation.
Read more about Maureen Leonard, MD, MMSc
photo of Julia Marcus, PhD, MPH

Julia Marcus, PhD, MPH

Contributor

Julia Marcus, PhD, MPH, is an epidemiologist and assistant professor at Harvard Medical School and Harvard Pilgrim Health Care Institute, with a primary research focus on pre-exposure prophylaxis for HIV prevention. During COVID-19, she has written about the importance of a harm reduction approach to the prevention of coronavirus transmission, with lessons learned from the HIV epidemic.
Read more about Julia Marcus, PhD, MPH
photo of Karen Turner, OTR/L

Karen Turner, OTR/L

Contributor

Karen Turner is an advanced practice occupational therapy patient navigator for individuals with autism and intellectual/developmental disorders at Massachusetts General Hospital. In this unique role, she provides care planning and coordination services, as well as individualized OT-based interventions for the patient, their caregiver(s), and their healthcare team. As a result, she reduces barriers to care, optimizes patient safety, improves satisfaction, and increases provider knowledge and comfort in the delivery of health services. Outside of patient encounters, Ms. Turner educates practitioners on caring for individuals with ASD/IDD, and works with departments across the continuum of care to implement systems to make individualized accommodations standard procedure. Ms. Turner received a BS from Boston University’s College of Communication in communication studies, and an MS from Boston University’s Sargent College in occupational therapy.
Read more about Karen Turner, OTR/L
photo of Melanie Pogach, MD

Melanie Pogach, MD

Contributor

Melanie Pogach, MD, MMSc, is a critical care and sleep medicine physician, the associate director of the Beth Israel Deaconess Medical Center Sleep Center, and an assistant professor of medicine at Harvard Medical School. She is committed to clinical care, education, innovation, and research as they apply to respiratory and sleep health. Her clinical passion lies in understanding and treating complicated sleep-breathing disorders, circadian dysregulation, and chronic respiratory failure. She has developed a chronic respiratory failure management program, and is conducting clinical research on noninvasive ventilation in patients with advanced COPD.
Read more about Melanie Pogach, MD
photo of Vikram Patel, MBBS, PhD

Vikram Patel, MBBS, PhD

Contributor

Vikram Patel, MBBS, PhD, is The Pershing Square Professor of Global Health at Harvard Medical School. He was the John Dirks Canada Gairdner Laureate in Global Health in 2019, and was listed in Time magazine’s 100 most influential persons in 2015. To get involved with the GMH@Harvard initiative, write to: GMH_admin@hms.harvard.edu.
Read more about Vikram Patel, MBBS, PhD
photo of Kathryn D. Boger, PhD, ABPP

Kathryn D. Boger, PhD, ABPP

Contributor

Kathryn D. Boger, PhD, ABPP, is board certified in clinical child and adolescent psychology by the American Board of Professional Psychology and specializes in cognitive behavior therapy (CBT) for anxiety and mood disorders. She has extensive training and experience in the delivery of evidence-based treatments, in both outpatient and residential levels of care.    Dr. Boger co-founded the McLean Anxiety Mastery Program (MAMP) in 2013 and served as Program Director since the program’s inception. In 2021, she transitioned to Senior Clinical Consultant to MAMP so that she could co-found a new company with the mission to provide accessible, effective, efficient anxiety and OCD interventions for children, teens, and families.    
Read more about Kathryn D. Boger, PhD, ABPP
photo of Anthony Lembo, MD

Anthony Lembo, MD

Contributor

Anthony Lembo, MD, is Director of the GI Motility and Functional Bowel Disorders Program at Beth Israel Deaconess Medical Center and Professor of Medicine at Harvard Medical School in Boston, MA. Dr. Lembo earned his medical degree from Tufts University School of Medicine in Boston and completed his residency in medicine, as well as fellowships in gastroenterology and gastrointestinal motility and irritable bowel syndrome (IBS), at the University of California, Los Angeles, (UCLA) Medical Center. Dr. Lembo’s research interests focus on the burden of and treatment options for irritable bowel syndrome (IBS) and chronic constipation, and he also studies the placebo response. He has published widely on these topics, He is also an Associate Editor of the Journal of Clinical Gastroenterology and Digestive Diseases and Science. He also been appointed numerous national and international leadership positions throughout his tenure.
Read more about Anthony Lembo, MD
photo of Paul F. Dellaripa, MD

Paul F. Dellaripa, MD

Contributor

Paul F. Dellaripa is a rheumatologist and internist at the Brigham and Women’s Hospital (BWH). He is an associate professor of medicine at Harvard Medical School. At BWH, he specializes in lung disorders associated with autoimmune diseases. He participates in clinical trials and clinical investigation to better understand and treat these disorders.
Read more about Paul F. Dellaripa, MD
photo of Vikram Rangan, MD

Vikram Rangan, MD

Contributor

Vikram Rangan, MD, is a gastroenterologist at Beth Israel Deaconess Medical Center (BIDMC) and is an Instructor in Medicine at Harvard Medical School. He joined the faculty in 2018, and is part of the irritable bowel syndrome (IBS) and motility team at BIDMC, which specializes in the diagnosis and management of GI motility disorders, as well as clinical research into novel treatment approaches for these conditions. Dr Rangan’s clinical and research interests include acid reflux, disorders of the stomach, and IBS.
Read more about Vikram Rangan, MD
photo of Parul Kothari, MD

Parul Kothari, MD

Contributor

Parul Kothari, MD, is an Associate Physician of Allergy and Clinical Immunology at Brigham and Women’s Hospital, and an Instructor in Medicine at Harvard Medical School. She completed medical school at New Jersey medical school followed by an Internal Medicine residency at Thomas Jefferson University Hospital and an Allergy and Immunology fellowship at Brigham and Women’s Hospital. Dr. Kothari’s clinical interests include drug allergy, allergies and asthma, and chronic urticaria.
Read more about Parul Kothari, MD
photo of Sara N. Bleich, PhD

Sara N. Bleich, PhD

Contributor

Sara N. Bleich is a professor of public health policy at the Harvard T.H. Chan School of Public Health. Sara served as a White House Fellow (2015–2016), where she was a senior policy advisor to the US Department of Agriculture and the first lady’s Let’s Move initiative.
Read more about Sara N. Bleich, PhD
photo of Andrew Oseran, MD, MBA

Andrew Oseran, MD, MBA

Contributor

Andrew Oseran MD, MBA is a clinical cardiology fellow at Massachusetts General Hospital. Dr. Oseran graduated from the University of Pennsylvania with a degree in economics in 2010. He received his MD from Georgetown University School of Medicine as well as a master’s in business administration (MBA) from the McDonough School of Business at Georgetown University. He completed his Internal Medicine Residency at Massachusetts General Hospital in 2019. His research interests include questions related to the delivery of health care and understanding how domestic policy initiatives impact health care outcomes and cost.
Read more about Andrew Oseran, MD, MBA
photo of Shiv Pillai, PhD, MBBS

Shiv Pillai, PhD, MBBS

Contributor

Shiv Pillai, PhD, MBBS, is a professor of medicine and health sciences and technology at Harvard Medical School, director of the Harvard immunology PhD and master’s in medical sciences programs, director of MD student research for the Harvard-MIT health sciences and technology program, and program director of an NIH-funded autoimmune center of excellence at Massachusetts General Hospital, based at the Ragon Institute.
Read more about Shiv Pillai, PhD, MBBS
photo of Valeria Duque, Au.D., CCC-A

Valeria Duque, Au.D., CCC-A

Contributor

Valeria Duque graduated with her doctor of audiology degree from Northeastern University in 2016. She has been a part of the Beth Israel otolaryngology team since February 2019, working with patients diagnosing hearing loss, fitting hearing aids, and conducting vestibular evaluations.
Read more about Valeria Duque, Au.D., CCC-A
photo of Shinjita Das, MD

Shinjita Das, MD

Contributor

Shinjita Das, MD is a board-certified dermatologist and Instructor in Dermatology at Harvard Medical School. She completed her undergraduate studies at the Massachusetts Institute of Technology with a BS in Biology. Dr. Das returned to her home state of Texas for medical school at the University of Southwestern Medical Center, where she was inducted into the Alpha Omega Alpha Honor Society. After internship in Dallas, she ventured back to Boston for residency at the Harvard Combined Dermatology Residency Training Program, where she served in leadership positions on the Quality Improvement and Program Education committees. She is currently pursuing her Master in Public Health at the Harvard School of Public Health. In addition to practicing general dermatology, Dr. Das serves as the MGH Department of Dermatology’s inaugural Technology Director. In this capacity, she spear-headed the expansion of the department’s electronic consult (eConsult) service to provide timely outpatient dermatology consultations. She also developed the dermatology eVisit program to allow established patients to have formal check-ins with their dermatologist in-between office visits. As Technology Director, Dr. Das leads and implements operational projects and patient education initiatives using technology-based solutions. Her current research is focused on evaluating ways technology can improve access to high-quality dermatologic care in an efficient manner.
Read more about Shinjita Das, MD
photo of Hyun Jung Kim, MD

Hyun Jung Kim, MD

Contributor

Dr. Hyun Jung Kim is a child and adolescent psychiatrist, specializing in transitional-age youth (15 to 25 years old) with serious mental illnesses, such as early psychotic disorders. She is a clinical instructor in psychiatry at Harvard Medical School, and is in charge in the psychotic disorders division at McLean Hospital.
Read more about Hyun Jung Kim, MD
photo of Jeannine Miranne, MD, MS

Jeannine Miranne, MD, MS

Contributor

Jeannine M. Miranne, MD, MS is a Urogynecologist at Brigham and Women’s Hospital and an Assistant Professor of Obstetrics, Gynecology, and Reproductive Biology at Harvard Medical School. She also serves as the Course Director for the Harvard Medical School Urogynecology Advanced Elective at Brigham and Women’s Hospital. She sees patients at both Brigham and Women’s main campus and in Braintree, MA and operates at Brigham and Women’s Hospital, Brigham and Women’s Faulkner Hospital, and South Shore Hospital. Her clinical interests include urinary incontinence, recurrent UTI, and pelvic organ prolapse.
Read more about Jeannine Miranne, MD, MS
photo of Daniel Kirshenbaum, MD

Daniel Kirshenbaum, MD

Contributor

Daniel Kirshenbaum, MD, is a general cardiologist at the Massachusetts General Hospital and Instructor in Medicine at Harvard Medical School. He completed his internal medicine residency at Boston Medical Center (BMC), also serving as Chief Medical Resident, where he then went on to also complete his clinical cardiology fellowship. He has academic interests in digital health, as well as the use of technology to enhance medical education.
Read more about Daniel Kirshenbaum, MD
photo of Kathleen Haley, MD

Kathleen Haley, MD

Contributor

Kathleen J. Haley, MD, is a physician in the Pulmonary and Critical Care Division at the Brigham and Women’s Hospital. She graduated from the Pennsylvania State University College of Medicine and then completed an Internal Medicine Residency at the New England Deaconess Hospital followed by fellowships in Pulmonary Medicine at the New England Deaconess Hospital and Critical Care Medicine at the Brigham and Women’s Hospital. Dr. Haley is an Assistant Professor of Medicine at Harvard Medical School and an Associate Physician at the Brigham and Women’s Hospital, where she attends in the Medical and Thoracic Intensive Care Units. Additionally, she serves as the Medical Director for the BWH Ventilator Service at Spaulding Hospital Cambridge. She is active in clinical research, where her interests include asthma and chronic critical illness.
Read more about Kathleen Haley, MD
photo of Inga Lennes, MD, MPH, MBA

Inga Lennes, MD, MPH, MBA

Contributor

Inga T. Lennes MD, MPH, MBA grew up in the midwest and came to the east coast for college. She attended Mount Holyoke College for her undergraduate degree and went on to attend the University of Massachusetts Medical School for her medical degree. Dr. Lennes completed her internal medicine residency training at Beth Israel Deaconess Medical Center and also was a Chief Medical Resident at BIDMC. She trained as a Hematology and Oncology Fellow in the Dana Farber/Mass General Brigham Cancer Care Fellowship. Dr. Lennes is a medical oncologist in the Center for Thoracic Cancers and specializes in seeing all lung cancers and esophageal cancer. She is the founder and director of the Pulmonary Nodule Clinic at Massachusetts General Hospital and works closely with colleagues to study and implement lung cancer screening and improve nodule management. Dr. Lennes is the Massachusetts General Physicians Organization Senior Vice President for Service Excellence and Practice Improvement.
Read more about Inga Lennes, MD, MPH, MBA
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Alan Geller, MPH, RN

Contributor

Alan Geller, MPH, RN, is a senior lecturer in the department of social and behavioral sciences at the Harvard T.H. Chan School of Public Health, where he teaches a course entitled “Successes and Challenges in Health Behavior Change,” which focuses on large public health challenges and interventions, often incorporating studies from education, housing, and labor. He has a long-standing academic interest in cancer prevention and cancer screening, with a particular expertise in melanoma. Additionally, he has an avid interest in tobacco cessation in low-socioeconomic-status populations.
Read more about Alan Geller, MPH, RN
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