Margaret W. Manion, M.D. is a graduate of Mount Holyoke College and Mount Sinai School of Medicine. She completed her pediatric residency and served as Chief Resident at The Floating Hospital at New England Medical Center. She has practiced primary-care pediatrics in the Boston area since 1991 and at Longwood Practices since 2008. Dr. Manion is a Clinical Instructor in Pediatrics at Harvard Medical School. She also serves on hospital committees at Boston Children's Hospital and Brigham and Women's Hospital and provides insight to Tufts Health Plan Medical Directors on the Quality of Care Committee.