Marjun Duldulao, MD

Colon and Rectal Surgery, Colorectal Cancer
Accepting New Patients


Photo of Los Angeles - Colorectal Surgery
1450 San Pablo St. HC4 - Suite 6200 , Los Angeles, CA 90033

Monday - Friday

8 a.m. - 5 p.m.

Photo of Santa Clarita - Colorectal Surgery
25751 McBean Pkwy. Suite 200 , Santa Clarita, CA 91355
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1808 Verdugo Blvd. Suite 404 , Glendale, CA 91208

Provider Details

Language Spoken
About Marjun Duldulao, MD

Marjun Philip Duldulao, MD, completed his general surgery training in Southern California at Loma Linda University Medical Center. He has been published in several peer-reveiwed journals and received numerous awards while concluding a research fellowship at City of Hope. Dr. Duldulao’s research focuses on the identification of markers associated with pathologic complete response in rectal cancer patients treated with chemoradiation therapy. Dr. Dululao received comprehensive colorectal training in New York at New York Presbyterian/Weill Cornell, Columbia Presbyterian Medical Center, and Memorial Sloan-Kettering Medical Center.

Dr. Duldulao specializes in minimally invasive and robotic procedures for the management of a variety of colorectal diseases, including colon and rectal cancer, polyps, inflammatory bowel disease, diverticulitis, and the treatment of complex anorectal and pelvic floor disorders. His clinical research interests include improving outcomes in colorectal surgery, minimally invasive colorectal surgery, and inflammatory bowel disease.

Dr. Duldulao was named one of the Top Doctors of 2021 by Los Angeles Magazine.


My patients need more than my surgical skills. They need time and good communication. My goal is to make sure that each patient understands their plan of care and has the facts they need to make the decisions that are right for them.


  • Colon and Rectal Surgery
  • Colorectal Cancer
Areas of Focus
Colorectal Surgery, Anal Fissure, Anal Manometry, Anorectal Diseases, Colon Rectal and Anal Cancer, Colonoscopy, Crohn's Disease, Diverticulitis, Endoscopic Polyp Removal, Familial adenomatous polyposis (FAP), Fistula, Hemorrhoids, Hereditary Polyposis Syndromes, Inflammatory Bowel Disease, Laparoscopic Colon Surgery, Minimally Invasive Colon Surgery, Pilonidal Disease, Pouch Surgery, Transanal Polyp Excision of Rectal Masses (TEMS/TAMIS), Ulcerative Colitis
Academic Title
Assistant Professor of Clinical Surgery

Insurances Accepted

Note: Please contact the practice directly to confirm your health plan is accepted.

Benefits among health plans and employers vary. Please contact your health plan to verify benefits and network providers for specific products. It is important to note that not all of our providers participate in all of a health plan's products or networks.

  • First Health
  • Watchtower
  • TriWest Healthcare Alliance (UHC)
  • Pacificare
  • Health Net Covered California
  • Brand New Day
  • Aetna
  • Anthem Blue Cross Covered California
  • Anthem Blue Cross Prudent Buyer
  • Beech Street Corporation /WC
  • Blue Shield Covered California
  • Blue Shield of California
  • ChoiceCare Network
  • Coventry Health Care
  • GEHA
  • Great-West Healthcare of California, Inc.
  • Health Net
  • Health Plans of Nevada
  • Interplan
  • Kern Health Systems
  • Laundry and Dry Cleaning Workers Health & Welfare
  • Marian Health Services
  • MultiPlan
  • NEXT
  • Presbyterian Intercommunity Hospital
  • Private Health Care Systems
  • Take Care (GUAM)
  • Union Roofers Health & Welfare Fund
  • United Healthcare
  • USC Network
  • Medicare

Ratings and Reviews

  • Provider Explanations Easy to Understand
  • Provider Gave Easy to Understand Instructions
  • Provider Showed Respect
  • Provider Listened Carefully
  • Provider Knew Medical History
  • Provider Spent Enough Time

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