Skip to main content
J. Marc Rhoads, MD, Pediatric Gastroenterology, Houston, TX, LBJ Hospital

J. MarcRhoadsMD

Pediatric Gastroenterology Houston, TX

Professor, Pediatrics, University of Texas Medical School, Houston

Dr. Rhoads is on Doximity

As a Doximity member you'll join over a million verified healthcare professionals in a private, secure network.

  • Connect with other colleagues in the same hospital or clinic
  • Search all U.S. specialist profiles and refer a patient
  • Read the latest clinical news and earn CME/CEU credits

See Dr. Rhoads' full profile

Already have an account?


  • Dr. J. Marc Rhoads is a pediatric gastroenterologist in Houston, TX and is division head of Pediatric Gastroenterology, Hepatology, and Nutrition at the University of Texas-McGoven Medical School in Houston. He is affiliated with multiple hospitals in the area, including Children's Memorial Hermann Hosptial, Lyndon Baines Johnson Hospital and University of Texas M.D. Anderson Cancer Center. He received his medical degree from Johns Hopkins University School of Medicine and has been in practice 37 years. He is experienced in functional abdominal disorders, diarrheal diseases, infant colic, and inflammatory bowel disease. He does research looking at probiotics and their mechanism of action in autoimmunity and in children with autism spectrum disorder.

Education & Training

  • UCLA David Geffen School of Medicine/UCLA Medical Center
    UCLA David Geffen School of Medicine/UCLA Medical CenterResidency, Pediatrics, 1980 - 1983
  • Johns Hopkins University School of Medicine
    Johns Hopkins University School of MedicineClass of 1980
  • Johns Hopkins UniversityB.A., Natural Sciences, 1976

Certifications & Licensure

  • TX State Medical License
    TX State Medical License 2006 - 2022
  • LA State Medical License
    LA State Medical License 2002 - 2006
  • NC State Medical License
    NC State Medical License 1986 - 2012
  • American Board of Pediatrics Pediatrics
  • American Board of Pediatrics Pediatric Gastroenterology

Awards, Honors, & Recognition

  • Top Doctors Houstonia Magazine, 2013
  • Top 1% of Pediatric Gastroenterologists U.S. News and World Report, 2013
  • America’s Top Pediatricians 2009
  • Join now to see all

Clinical Trials

Publications & Presentations


Journal Articles

  • Probiotics in Autoimmune and Inflammatory Disorders  
    J. Marc Rhoads, MD, MDPI
  • Communication between B-cells and microbiota for the maintenance of intestinal homeostasis (Review Article)  
    Liu Y, Rhoads JM, Antibodies, 1/1/2013
  • Lactobacillus reuteri strains reduce incidence and severity of experimental necrotizing enterocolitis via modulation of TLR4 and NFkappaB signaling in the intestine  
    Liu Y, Fatheree N, Mangalat N, Rhoads JM, Am J Physiol Gastrointest Liver Physiol, 1/29/2012
  • Join now to see all

Books/Book Chapters

  • Join now to see all


  • Pilot study of hypoallergenic formula with Lactobacillus GG: impact on crying time, inflammatory biomarkers and microbiota in infants with colic.
    Fatheree YN, Liu Y, Ferris M, Zozaya M, McMurtry V, Cai C, Rahbar MH, Ardjomand-Hessabi M, Vu T, Wong C, Van Arsdall MR, Min J, Tran DQ, Navarro F, Gleason W, Gonzalez..., American Gastroenterological Association (AGA), Digestive Disease Week (DDW) Annual Meeting, Chicago, IL, 1/1/2014
  • Lactobacillus reuteri DSM17938 prolongs the survival of Treg-deficient Scurfy mice.
    Liu Y, Tran DQ, and Rhoads JM, American Gastroenterological Association (AGA), Digestive Disease Week (DDW) Annual Meeting, Chicago, IL, 1/1/2014
  • Characterization of the duodenal microbiota of children with small intestinal bacterial overgrowth and chronic abdominal pain.
    Van Arsdall M, Liu Y, Zozaya-Hinchliffe M, McMurtry V, Wanger A, Ferris M, Rhoads M, North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition (NASPGHAN) Annual Meeting, Chicago, IL, 1/1/2013
  • Join now to see all


  • Infant Nutrition and Health. 
    Texas A&M University - 1/1/2013
  • Probiotics in pediatrics: New evidence and future perspectives. Moderator and Speaker 
  • Early Gut Function and Role in Intestinal Colic. 
    Baltimore, MD - 1/1/2009
  • Join now to see all


  • Recognition and management of dietary carbohydrate-induced diarrhea in pediatric patients. A case-based monograph. 
    Shulman RJ, Pohl JF, Reinstein LJ, and Rhoads JM, NASPGHAN Continuing Medical Education Monograph Series Publication

Grant Support

  • Safety And Effect Of L. Reuteri On Biomarkers Of Inflammation In Healthy InfantsNational Center For Complementary &Alternative Medicine2012
  • Phase I: Safety And Tolerance Of Lactobactocillus Reuteri In AdultsNational Center For Complementary &Alternative Medicine2009–2011
  • Effect Of Lactobactocillus Rhamnosus GG On Colic Symptoms And Breath HydrogenNational Center For Complementary &Alternative Medicine2008
  • Mechanisms Of Intestinal Cell MigrationNational Institute Of Diabetes And Digestive And Kidney Diseases2000–2001
  • Lamivudine Traial In Pediatric PTS W/ Chronic Hepatitis BNational Center For Research Resources2000
  • Glutamine And Intestinal Transport And Mucosal GrowthEunice Kennedy Shriver National Institute Of Child Health &Human Development1990–1994

Hospital Affiliations