Peter H Green, MD

Cancer Care, Gastroenterology, Internal Medicine
More specialties
Accepting New Patients
Virtual Visits/Telehealth


Areas of Expertise / Conditions Treated

  • Abdominal Pain
  • Acid Reflux
  • Celiac Disease
  • Colon Cancer
  • Colon Cancer Screening and Prevention
  • Colon Disorder
  • Colonoscopy
  • Colon Polyps
  • Colorectal Cancer
  • Diarrhea
  • Gastroesophageal Reflux Disease
  • Hiatal Hernia
  • Liver Disease
  • Malabsorption
  • Malnutrition
  • Parasitic Infection
  • Peptic Ulcer Disease
  • Second Opinion
  • Small Bowel Problem
  • Ulcer
  • Ulcer Disorders
  • Upper Endoscopy

Academic Appointments

  • Phyllis and Ivan Seidenberg Professor of Medicine at CUMC

Hospital Affiliations

  • NewYork-Presbyterian / Columbia University Irving Medical Center


  • Male

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Virtual Visits/Telehealth

Virtual Visits allow you to connect with your provider from the comfort, convenience, and safety of your own home.

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Phone Appointments

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180 Fort Washington Avenue
Room 936
New York, NY 10032

Insurance Accepted


  • Aetna Signature Administrators
  • EPO
  • HMO
  • Medicare Managed Care
  • NYP Employee Plan
  • NY Signature
  • POS
  • PPO
  • Student Health


  • EPO
  • Great West (National)
  • HMO
  • POS
  • PPO


  • Railroad
  • Traditional Medicare

Oxford Health Plans

  • Freedom
  • Liberty

Quality Health Management

  • Quality Health Management


  • Columbia University Employee Plan
  • Empire Plan
  • HMO
  • Medicare Managed Care
  • POS
  • PPO

*Please contact the provider’s office directly to verify that your particular insurance is accepted.

Credentials & Experience

Education & Training

  • Sydney University Medical School (Australia)
  • Internship: Royal Northshore Hospital
  • Residency: Royal Northshore Hospital
  • Fellowship: Beth Israel Hospital
  • Fellowship: Columbia Presbyterian Medical Center, NY

Board Certifications

  • Internal Medicine
America's Top Doctor
NY Top Doctor


I am a clinician-investigator specializing in the field of celiac disease and in 2001 I founded the Celiac Disease Center at Columbia University Medical Center. The Center now includes adult and pediatric gastroenterologists, dieticians, research coordinators; and has active research collaborations worldwide to study the epidemiology, clinical manifestations, and the pathophysiological mechanisms of celiac disease. I have authored a book, “Celiac disease, a hidden epidemic” and have co-authored more than 100 peer-reviewed publications on the topic of celiac disease, including epidemiological investigations, studies of associated diseases, pathophysiology, and clinical trials of non-dietary drug therapy.

Selected Publications

  • Myleus A, Reilly NR, Green PHR. Rate, risk factors and outcomes of nonadherence in pediatric patients with celiac disease: a systematic review. Clin Gastroenterol Hepatol. 2020;18(3):562-573. doi: 10.1016/j.cgh.2019.05.046. PMID: 31173891

  • Walker MD, Williams J, Lewis SK, Bai JC, Lebwohl B, Green PHR. Measurement of Forearm Bone Density by Dual Energy X-Ray Absorptiometry Increases the Prevalence of Osteoporosis in Men With Celiac Disease. Clin Gastroenterol Hepatol. 2020 Jan;18(1):99-106. PMID: 30981003

  • Wolf RL, Lebwohl B, Lee AR, Zybert P, Reilly NR, Cadenhead J, Amengual C, Green PHR. Hypervigilance to a Gluten-Free Diet and Decreased Quality of Life in Teenagers and Adults with Celiac Disease. Dig Dis Sci. 2018 Jun;63(6):1438-1448. PMID: 29387990