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Otis Stephen, MD
Practice accepting new patients.

Otis Stephen, MD

(707) 303-8349
Primary Specialties
  • Gastroenterology
    (Board Certified)
Secondary Specialties
  • Internal Medicine
    (Board Certified)
Medical Groups & Affiliations
  • St. Joseph Health Medical Group

Primary Office

St. Joseph Health Medical Group
500 Doyle Park
Suite GO4
Santa Rosa, CA 95405
(707) 303-8349
Please call office for hours
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Physician Bio

Dr. Otis Stephen brings over ten years of experience to Annadel Medical Group and the Digestive Care Center. Board-certified in gastroenterology, internal medicine and hepatology, Dr. Stephen provides expert diagnosis and treatment of all types of gastrointestinal diseases and digestive disorders, from inflammatory bowel disease to GERD. As part of one of the most respected GI groups in Sonoma County, Dr. Otis offers a patient-centered approach and highly skilled procedures and the most advanced diagnostic and treatment options available.


  • College:
    B.S., Physiological Sciences - Los Angeles, CA, University of California, Los Angeles
  • College:
    Graduate study in Physiology - Pomona, CA, California Polytechnic University, Pomona
  • Medical School:
    Doctorate of Medicine - Columbus, OH, The Ohio State University, College of Medicine
  • Internship:
    Program in Internal Medicine - Baltimore, MD, Johns Hopkins University/Sinai Hospital
  • Residency:
    Program in Internal Medicine - Baltimore, MD, Johns Hopkins University/Sinai Hospital
  • Fellowship:
    Fellowship Program in Gastroenterology & Hepatology - St. Louis, MO, Saint Louis University School of Medicine
  • Board Certified in Gastroenterology
  • Board Certified in Internal Medicine


  • American College of Gastroenterology
  • American Gastroenterology Association
  • American Society of Gastrointestinal Endoscopy

Areas of Interest

  • Hepatology
  • Gastroenterology
  • Internal Medicine

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