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Sonnier william

William Sonnier, M.D.

GastroenterologistAssistant Professor of Internal MedicineSpecialty: Digestive Health
Or call to make an appointment1 (251) 660-5555

About William Sonnier

Currently serving as assistant professor of internal medicine at the University of South Alabama College of Medicine and a gastroenterologist at the USA Health Digestive Health Center, Sonnier said he is excited to join USA Health.

Sonnier said his goal is to expand the care provided to patients with complex inflammatory bowel disease through novel treatment methods and participation in clinical trials.

Board Certifications

  • American Board of Internal Medicine


  • Medical School: University of South Alabama College of Medicine | Mobile, AL
  • Residency (Internal Medicine): University of Alabama at Birmingham | Birmingham, AL
  • Fellowship (Gastroenterology): University of South Alabama College of Medicine | Mobile, AL

Professional Memberships

  • American College of Physicians
  • American Medical Association
  • American College of Gastroenterology
  • American Society for Gastrointestinal Endoscopy
  • American Gastroenterological Association


  • English

Conditions Treated

  • Constipation
  • Gastroesophageal Reflux Disease (GERD)
  • Irritable Bowel Syndrome (IBS)
  • Rectal Bleeding
  • Ulcerative Colitis
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