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Professional Statement

  • Dr. Il J. Paik has undergone extensive training in internal medicine, geriatric medicine, gastroenterology, hepatology, and intestinal motility.
  • Dr. Paik has special expertise concerning motility disorders in adults of all ages. He is board certified in internal medicine, geriatric medicine, and gastroenterology.
  • As a one of the few geriatric gastroenterologist in the country, he serves as the Director of the Comprehensive Gastrointestinal (GI) Center for Aging at St. Luke's-Roosevelt Hospital Center (SLR). In this role, he provides high-quality GI care to adults and seniors at the center. He specializes in swallowing disorders, gastroesophageal reflux, chronic vomiting, dyspepsia, gastroparesis, IBS, refractory constipation and fecal incontinence.
  • As the Director of Neurogastroenterology and Motility Laboratory at SLR, Dr. Paik offers cutting-edge GI motility testing and treatment, including minimally invasive endoscopy, esophageal and anorectal motility testing, ambulatory esophageal reflux monitoring and anorectal biofeedback therapy. In addition, he is fluent in English, Spanish, Portuguese and Korean.

Education & Training

  • Medical School - Universidad Nacional de Asunción Facultad de Medicina
  • Columbia University, Saint Luke's-Roosevelt Hospital Center, Residency in Internal Medicine
  • Columbia University, Saint Luke's-Roosevelt Hospital Center, Fellowship in Geriatrics
  • Columbia University, Saint Luke's-Roosevelt Hospital Center, Fellowship in Gastroenterology and Hepatology
  • Icahn School of Medicine at Mount Sinai, Fellowship in Transplant Hepatology

Board Certifications

  • American Board of Internal Medicine
  • Gastroenterology (Internal Medicine)
  • Geriatric Medicine (Internal Medicine)

Awards and Publications

  • Graduated at 12th Place from Medical School
  • American Neurogastroenterology and Motility Society Visiting Fellowship Grant 2011
  • The Prevalence And Pathogenesis of Diabetes Mellitus in Treated HIV-Infection. Best Practice & Research Clinical Endocrinology and Metabolism, 2011 June;25(3):469-78 IJ Paik, DP Kotler
  • Health Care Cost Savings of Providing Geriatric Gastroenterology Consultations In Long Term Care Facilities. Il J. Paik, Francisco Barajas, Ellen Engelson, Elliot Schwartz, Brenda Matti, Donald Kotler. Poster Presentation/American College of Gastroenterology Annual Scientific Meeting 2012.
  • “Doctor, I am losing my voice”: A rare case of new onset Myasthenia Gravis in 89-year-old female with dysphonia. G. Kant, H. Arabelo, I. Paik.Poster presentation/American Geriatrics Society Annual Scientific Meeting. Grapevine, TX 2013 Annual Scientific Meeting Abstract Book.

Professional Memberships

  • American College of Physicians
  • American Neurogastroenterology and Motility Society

Language Spoken

  • English
  • Korean
  • Spanish