Benjamin F. Nulsen, MD
Accepting new patients

Benjamin F. Nulsen, MD

  • Gastroenterology
Average rating: 4.9
| 209 ratings
Santa Monica Digestive Diseases | 1223 16th Street, Suite 3100, Santa Monica, CA 90404


Dr. Nulsen earned his bachelor's degree from Georgetown University in Washington, DC. He earned his medical degree from the Icahn School of Medicine at Mount Sinai in New York City, and continued there for his residency in internal medicine, serving as chief resident. He completed his gastroenterology fellowship training at UCLA, where he was chief fellow.

During training, Dr. Nulsen researched novel approaches to gastrointestinal bleeding and patterns of medication use in irritable bowel syndrome. He also worked with the American Gastroenterological Association to develop the Gastro Cards educational app.

Dr. Nulsen practices general gastroenterology and has clinical expertise in colon cancer screening, gastroesophageal reflux disease, motility disorders, functional bowel disorders, colorectal disorders, colonoscopy and endoscopy. He is a member of the American College of Gastroenterology and American Gastroenterological Association. He is board certified in internal medicine and gastroenterology.




Medical Board Certifications

Gastroenterology, American Board of Internal Medicine, 2020
Internal Medicine, American Board of Internal Medicine, 2016


Gastroenterology, UCLA School of Medicine, 2020


Internal Medicine, Icahn School of Medicine at Mount Sinai, 2017


MD, Icahn School of Medicine at Mount Sinai, 2013

Hospital Affiliations

Ronald Reagan UCLA Medical Center

UCLA Santa Monica Medical Center

Medical Services


  • Aetna
  • Anthem Blue Cross
  • Blue Shield of California
  • Centivo
  • Cigna
  • First Health
  • Health Net of California
  • Interplan (part of HealthSmart)
  • L.A. Care
  • MultiPlan
  • UFCM Health System
  • Prime Health Services
  • Private Healthcare Systems (PHCS)
  • UnitedHealthcare

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