Phillip I. Tarr, M.D.

Co-Leader, Pathobiology Research Unit, Department of Pediatrics Director, Division of Pediatric Gastroenterology and Nutrition Melvin E. Carnahan Professor of Pediatrics Professor of Molecular Microbiology

Gastroenterology, Hepatology and Nutrition
Infectious Diseases


phone: (314) 454-6173


  • B.A., Brown University, 1975
  • M.D., Yale University School of Medicine, 1980


  • Intern/Resident, University of Washington School of Medicine/Children's Orthopedic Hospital and Medical Center, 1980 - 1983
  • Senior Fellow, University of Washington School of Medicine, 1983 - 1987
  • Fellow, University of Washington School of Medicine and Children's Hospital and Medical Center , 1988 - 1989

Licensure and Board Certification

  • Pediatrics - ABP, 1984
  • Pediatric Gastroenterology - ABP, 1992
  • State of Missouri, , 2002
  • BCS, 2012
  • The American Board of Pediatrics (ABP) Maintenance of Certification (MOC), 2013


  • American Gastroenterological Association/Blackwell Scientific Research Scholar Award, 1992 - 1995
  • Food and Drug Administration Commissioner's Special Citation, 1997 - 1997
  • Melvin E. Carnahan Professor of Pediatrics, Endowed Chair, 2004

Recent Publications view all (151)

1. Freedman, S. B., Xie, J., Neufeld, M. S., Hamilton, W. L., Hartling, L., Tarr, P. I., , (2016). Shiga Toxin-Producing Escherichia coli Infection, Antibiotics, and Risk of Developing Hemolytic Uremic Syndrome: A Meta-analysis. Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 62 (10), 1251-8. PMCID: PMC4845788 PubMed: 26917812.

2. Stauber, J., Shaikh, N., Ordiz, M. I., Tarr, P. I., Manary, M. J. (2016). Droplet digital PCR quantifies host inflammatory transcripts in feces reliably and reproducibly. Cellular immunology, S0008-8749 (16), 30016-8 PubMed: 27063479.

3. Warner, B. B., Deych, E., Zhou, Y., Hall-Moore, C., Weinstock, G. M., Sodergren, E., Shaikh, N., Hoffmann, J. A., Linneman, L. A., Hamvas, A., Khanna, G., Rouggly-Nickless, L. C., Ndao, I. M., Shands, B. A., Escobedo, M., Sullivan, J. E., Radmacher, P. G., Shannon, W. D., Tarr, P. I. (2016). Gut bacteria dysbiosis and necrotising enterocolitis in very low birthweight infants: a prospective case-control study. Lancet (London, England), S0140-6736 (16), 00081-7 PubMed: 26969089.

4. Gibson M.K., Wang B., Ahmadi S., Burnham C.A., Tarr P.I., Warner B.B., Dantas G. (2016). Developmental dynamics of the preterm infant gut microbiota and antibiotic resistome. Nature Microbiology, 1, 16024.

5. Yu, J., Ordiz, M. I., Stauber, J., Shaikh, N., Trehan, I., Barnell, E., Head, R. D., Maleta, K., Tarr, P. I., Manary, M. J. (2016). Environmental Enteric Dysfunction Includes a Broad Spectrum of??Inflammatory Responses and Epithelial Repair Processes. Cellular and molecular gastroenterology and hepatology, 2 (2), 158-174.e1. PMCID: PMC4769221 PubMed: 26973864.

6. Poindexter, B. B., Feng, R., Schmidt, B., Aschner, J. L., Ballard, R. A., Hamvas, A., Reynolds, A. M., Shaw, P. A., Jobe, A. H., Tarr, P.I. listed as study participant investigator. (2015). Comparisons and Limitations of Current Definitions of Bronchopulmonary Dysplasia for the Prematurity and Respiratory Outcomes Program. Annals of the American Thoracic Society, 12 (12), 1822-30. PMCID: PMC4722827 PubMed: 26397992.

7. Lim, E. S., Zhou, Y., Zhao, G., Bauer, I. K., Droit, L., Ndao, I. M., Warner, B. B., Tarr, P. I., Wang, D., Holtz, L. R. (2015). Early life dynamics of the human gut virome and bacterial microbiome in infants. Nature medicine, 21 (10), 1228-34 PubMed: 26366711.

8. Ordiz, M. I., May, T. D., Mihindukulasuriya, K., Martin, J., Crowley, J., Tarr, P. I., Ryan, K., Mortimer, E., Gopalsamy, G., Maleta, K., Mitreva, M., Young, G., Manary, M. J. (2015). The effect of dietary resistant starch type 2 on the microbiota and markers of gut inflammation in rural Malawi children. Microbiome, 3, 37. PMCID: PMC4558878 PubMed: 26334878.

9. Freedman, S. B., Lee, B. E., Louie, M., Pang, X. L., Ali, S., Chuck, A., Chui, L., Currie, G. R., Dickinson, J., Drews, S. J., Eltorki, M., Graham, T., Jiang, X., Johnson, D. W., Kellner, J., Lavoie, M., MacDonald, J., MacDonald, S., Svenson, L. W., Talbot, J., Tarr, P., Tellier, R., Vanderkooi, O. G. (2015). Alberta Provincial Pediatric EnTeric Infection TEam (APPETITE): epidemiology, emerging organisms, and economics. BMC pediatrics, 15, 89. PMCID: PMC4521468 PubMed: 26226953.

10. Julian, S., Burnham, C. A., Sellenriek, P., Shannon, W. D., Hamvas, A., Tarr, P. I., Warner, B. B. (2015). Impact of Neonatal Intensive Care Bed Configuration on Rates of Late-Onset Bacterial Sepsis and Methicillin-Resistant Staphylococcus aureus Colonization. Infection control and hospital epidemiology, 1-10 PubMed: 26108888.