Merck Manual

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William J. Cochran, MD

Specialities and Expertise

  • Pediatric Gastroenterology, Pediatric Nutrition, Pediatric Obesity


  • Associate Emeritus, Department of Pediatrics, Gastroenterology, and Nutrition
  • Geisinger Clinic


  • Medical School: Pennsylvania State University College of Medicine, State College, PA
  • Residency: Pediatrics, University of Rochester, Rochester, NY
  • Fellowship: Pediatric Gastroenterology, University of Rochester, Rochester, NY
  • Fellowship: Pediatric Gastroenterology, Baylor College of Medicine, Houston, TX


  • American Board of Pediatrics – General Pediatrics
  • American Board of Pediatrics – Pediatric Gastroenterology

Select Awards, Achievements and Publications

  • Past Fellow, American Academy of Pediatrics
  • Bailey-Davis L, Kling SMR, Wood GC, Cochran WJ, et al: Feasibility of enhancing well child visits with family nutrition and physical activity risk assessment on body mass index. Obesity Science & Practice 5:220– 230, 2019.
  • Bailey-Davis L, Kling SMR, Cochran WJ, et al: Integrating and coordinating care between the Women, Infants and Children Program and pediatricians to improve patient-centered preventive care for healthy growth. Transl Behav Med 8(6):944-952, 2018.
  • Baker-Smith CM, de Ferranti SD, Cochran WJ, and Committee on Nutrition, Section on Gastroenterology, Hepatology, and Nutrition: The use of nonnutritive sweeteners in children. Pediatrics 144 (5) e20192765, 2019.
  • Morris G, Kennedy A, Cochran W: Congenital anomalies of the small intestine: Review and update. Current Gastroenterology Reports. 18:16, 2016, published online. DOI 10.1007/s11894-016-0490-4.
  • Thomas DW, Greer FR, Bhatia JJS, Abrams SA, Daniels SR, Schneider MB, Silverstein J, Stettler N, Thomas DW, Heitlinger LA, Baker RD, Gremse DA, Gugig R, Lightdale JR, Byrne WJ, Cochran WJ, Euler AR Meyman MB: Clinical report-Probiotics and prebiotics in