About Lauren Fiechtner, MD

Lauren Fiechtner, MD, MPH, is the Director of Nutrition at MassGeneral Hospital for Children in the Division of Gastroenterology and Nutrition. Dr. Fiechtner received her Bachelors in Science in Sociology from University of Michigan.

She is a 2009 graduate of Boston University School of Medicine and a member of Alpha Omega Alpha and the Gold Humanism Honor Society. She completed her internship and residency in the Boston Combined Residency Program in Pediatrics at both Boston Medical Center and Boston Children's Hospital. She also completed a gastroenterology and nutrition fellowship at Boston Children's Hospital. She obtained her Master's in Public Health at the Harvard School of Public Health.

As an intern she was awarded the Outstanding Resident Teaching award from Harvard Medical School and Beth Israel Deaconess Medical Center. She was also awarded the Michael Osband, MD, Memorial award during residency which is given to the resident which embodies Dr. Osband's work through compassion, dedication and enthusiasm and has positively impacted the lives of their colleagues, patients and families.

Dr. Fiechtner's interests include preventing childhood obesity in the community and improving care for patients with oral aversion and feeding difficulties. She has presented her work at the Pediatric Academic Societies, the Obesity Society and the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition annual meetings. Her work has been published in the American Journal of Public Health, Childhood Obesity, Preventive Medicine and Journal of National Medical Association.

Clinical Interests:



Mass General for Children: Pediatric Gastroenterology & Nutrition Program
55 Fruit St.
Yawkey Center for Outpatient Care
Suite 6B
Boston, MA 02114
Phone: 617-726-8705

Medical Education

  • MD, Boston University School of Medicine
  • MPH, Harvard T.H. Chan School of Public Health*
  • Residency, Boston Medical Center
  • Residency, Children's Hospital of Boston
  • Fellowship, Boston Children's Hospital

American Board Certifications

  • Pediatric Gastroenterology, American Board of Pediatrics
  • Pediatrics, American Board of Pediatrics

Accepted Insurance Plans

Note: This provider may accept more insurance plans than shown; please call the practice to find out if your plan is accepted.


Dr. Fiechtner's research has focused on prevention and treatment of childhood obesity in the community. She has published multiple papers utilizing geographic information systems to understand the food environment children are living in and how that impacts their weight status. She also has been a co-investigator on her mentor Dr. Taveras' large behavioral randomized controlled trials for treatment of childhood obesity. Finally, she has been following two birth cohorts and examining the infants microbiome and diet to better understand the origins of obesity in early life. 


  • Fiechtner L, Block J, Duncan DT, Gillman, MW, Gortmaker, SL, Melly, SJ, Rifas-Shiman, SL and Taveras, EM. Proximity to supermarkets associated with higher body mass index among overweight and obese preschool-age children. Prev Med 2013;56:218-21.

    Fiechtner L, Sharifi M, Sequist T, Block, JP, Duncan, DT, Melly, SJ, Rifas-Shiman, S, Taveras E. Food environments and childhood weight status: effects of neighborhood median income. Childhood obesity. Jun 2015;11(3):260-268.

    Fiechtner, L, Kleinman,K, Melly, SJ, Sharifi, M, Marshall, R, Block, JP, Cheng, ER, Taveras, EM.. Effects of Proximity to Supermarkets on a Randomized Trial Studying Interventions for Obesity. In Press. American Journal of Public Health.

    Robinson, A.* Fiechtner, L.*, Roche, B, Ajami, NJ, Petrosino, JF, Camargo, CA, Taveras, EM, Hasegawa, K. Association of maternal gestational weight gain with the infant fecal microbiota. JPGN. 2017 March 7 [Epub ahead of print].

    Fiechtner, L,* Cheng, ER,* Lopez, G, Sharifi, M, Taveras, EM. Multi-level Correlates of Healthy BMI Maintenance and Return to a Healthy BMI among Children in Massachusetts. Child Obes.2017 Apr.13 (2); 146-153.

    Fiechtner, L, Puente, GC, Sharifi, M, Block, J, Price, S, Marshall, R, Blossom, J, Gerber, MW, Taveras, EM. Development and implementation of a community resource map to support clinical-community linkages in a childhood obesity randomized controlled trial. Preventing Chronic Disease, In Press.

Reviews: Comments and Ratings