Dr. John Allman Barnard MD Pediatric Gastroenterologist

Dr. John Barnard is a pediatric gastroenterologist in Columbus, Ohio. He is affiliated with multiple hospitals in the area, including Cleveland Clinic Foundation and Nationwide Children's Hospital. He received his medical degree from University of Mississippi School of Medicine and has been in practice for 34 years. He is one of 14 doctors at Cleveland Clinic Foundation and one of 15 at Nationwide Children's Hospital who specialize in Pediatric Gastroenterology.

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Office Location

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Specialty & Clinical Interests

Pediatric Gastroenterologist: General Pediatric Gasteroenterology

Hospital Affiliation

Cleveland Clinic Foundation
Ranked #10 in Pediatrics: Gastroenterology & GI Surgery

Nationwide Children's Hospital
Ranked #14 in Pediatrics: Gastroenterology & GI Surgery

Education & Medical Training

Vanderbilt University
Residency, Pediatrics, 1980 - 1986

University of Mississippi School of Medicine
Class of 1980

Certifications & Licensure

American Board of Family Medicine
Certified in Family Medicine

American Board of Internal Medicine
Certified in Internal Medicine

WI State Medical License
Active through 2013

Publications & Presentations

Gene-centric Meta-analysis in 87,736 Individuals of European Ancestry Identifies Multiple Blood-Pressure-Related Loci.
Tragante, V.,Barnes, M. R.,Ganesh, S. K.,Lanktree, M. B.,Guo, W.,Franceschini, N.,Smith, E. N.,Johnson, T.,Holmes, M. V.,Padmanabhan, S.,Karczewski, K. J.,Almoguera, B.,Barnard, J.,Baumert, J.,Chang, Y. P.,Elbers, C. C.,Farrall, M.,Fischer, M. E.,Gaunt, T. R.,Gho, J. M.,Gieger, C.,Goel, A.,Gong, Y.,Isaacs, A.,Kleber, M. E.,Leach, I. M.,McDonough, C. W.,Meijs, M. F.,Melander, O.,Nelson, C. P.,Nolte, I. M.,Pankratz, N.,Price, T. S.,Shaffer, J.,Shah, S.,Tomaszewski, M.,van der Most, P. J.,Van Ipere

Atrial Fibrillation Associated Chromosome 4q25 Variants Are Not Associated with PITX2c Expression in Human Adult Left Atrial Appendages.
Gore-Panter, S. R.,Hsu, J.,Hanna, P.,Gillinov, A. M.,Pettersson, G.,Newton, D. W.,Moravec, C. S.,Van Wagoner, D. R.,Chung, M. K.,Barnard, J.,Smith, J. D.

Novel Genetic Markers Associate with Atrial Fibrillation Risk in Europeans and Japanese.
Lubitz, S. A.,Lunetta, K. L.,Lin, H.,Arking, D. E.,Trompet, S.,Li, G.,Krijthe, B. P.,Chasman, D. I.,Barnard, J.,Kleber, M. E.,Dörr, M.,Ozaki, K.,Smith, A. V.,Müller-Nurasyid, M.,Walter, S.,Agarwal, S. K.,Bis, J. C.,Brody, J. A.,Chen, L. Y.,Everett, B. M.,Ford, I.,Franco, O. H.,Harris, T. B.,Hofman, A.,Kääb, S.,Mahida, S.,Kathiresan, S.,Kubo, M.,Launer, L. J.,Macfarlane, P. W.,Magnani, J. W.,McKnight, B.,McManus, D. D.,Peters, A.,Psaty, B. M.,Rose, L. M.,Rotter, J. I.,Silbernagel, G.,Smith, J. D.

See all 42 publications

Insurances Accepted

  • Aetna Choice POS II
  • BCBS Blue Card PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • Cofinity PPO
  • Great West PPO
  • Humana ChoiceCare Network PPO
  • Multiplan PHCS PPO
  • Rocky Mountain Group/Indiv - HMO/Private Pay
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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