David S. Lee, MD

Dr. Manson is an Assistant Professor of Medicine in the Division of Pulmonary, Allergy and Critical Care Medicine. He received his B.A. in the Biological Basis of Behavior and Political Science from the University of Pennsylvania in Philadelphia, PA and his medical degree from Columbia University College of Physicians and Surgeons. He completed residency training in Internal Medicine at Columbia University and served as Chief Resident. He completed fellowship in Pulmonary and Critical Care Medicine at Columbia University Medical Center, serving as Chief Fellow during his last year of fellowship training. He is board-certified in Internal Medicine, Pulmonary Disease, and Critical Care Medicine by the American Board of Internal Medicine. Dr. Manson specializes in caring for patients with a broad range of pulmonary diseases and critical illness with a particular clinical interest in pulmonary care for patients with cancer. He is dedicated to providing compassionate, thoughtful, and evidence-based care. He is passionate about medical education and serves as an Associate Program Director for the Internal Medicine Residency Program, co-directing the Advanced Clinician Educator Program. His academic interests include pulmonary effects of cancer-related therapies, the physical and psychological consequences of pulmonary disease and critical illness, bolstering education in serious illness communication, and optimizing the use of palliative care in the intensive care unit.

Dr. Charles Murphy is an assistant professor of medicine at Columbia University Irving Medical Center (CUIMC) and co-director of Columbia’s HHT Center for Excellence. Dr. Murphy specializes in the diagnosis and treatment of hereditary hemorrhagic telangiectasia (HHT) as well as the full range of pulmonary and critical illnesses. Dr. Murphy received his medical degree from Louisiana State University School of Medicine. He was inducted into the Alpha Omega Alpha Honor Medical Society and underwent internal medicine residency training at Montefiore Medical Center, where he was chief resident. He then completed a fellowship in pulmonary and critical care medicine at CUIMC, where he was chief fellow. He is passionate about providing exceptional inpatient and outpatient care to patients with pulmonary diseases and critical illnesses.

Doreen Kramer, CNM is a Certified Nurse Midwife at CUMC currently practicing at ColumbiaDoctors Riverdale. Doreen received her BA from New York University Gallatin School of Individualized Studies and a MSN specializing in Midwifery at Columbia University School of Nursing. Her mind body approach to health and wellbeing is influenced by her Chinese heritage and prior years of experience as a Certified Yoga Instructor and Certified Doula. She is passionate about supporting her patients’ physical and emotional wellness throughout their sexual and reproductive lifespans. Open-minded and curious, Doreen loves working with teens and adults of all genders and sexual orientations to provide individualized, holistic, respectful, and empowering gynecologic and obstetric care. Her areas of focus include: routine gynecology, STI prevention/treatment, family planning and birth control options, pregnancy, postpartum care, parenting support, stress management, and breastfeeding support. Outside of work she enjoys travel, being active in nature, and expressing herself creatively.