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 (149)

1. 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 PubMed: 27063479.

2. Warner BB, Deych E, Zhou Y, Hall-Moore C, Weinstock GM, Sodergren E, Shaikh N, Hoffman JA, Linneman LA, Hamvas A, Khanna G, Rouggly-Nickless LC, Ndao IM, Shands BA, Escobedo M, Sullivan JE, Radmacher PG, Shannon WD, Tarr PI (2016). Gut Bacterial Dysbiosis Precedes Necrotising Enterocolitis in Very Low Birthweight Infants. The Lancet

3. Gibson MK, Wang B, Ahmadi S, Burnham CA, Tarr PI, Warner BB, Dantas G (2016). Developmental dynamics of the preterm infant gut microbiota and antibiotic resistome. Nature Microbiology

4. 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 PubMed: 26917812.

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 PubMed: 26973864.

6. 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.

7. 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.

8. 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.

9. 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.

10. VanDussen, K. L., Marinshaw, J. M., Shaikh, N., Miyoshi, H., Moon, C., Tarr, P. I., Ciorba, M. A., Stappenbeck, T. S. (2015). Development of an enhanced human gastrointestinal epithelial culture system to facilitate patient-based assays. Gut, 64 (6), 911-20. PMCID: PMC4305344 PubMed: 25007816.