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Faculty & Staff

M. Philip Duldulao, M.D.

M. Philip Duldulao, M.D.
Assistant Professor of Colorectal Surgery
Department of Surgery / Division of Colorectal Surgery

Keck School of Medicine of USC

Palmdale Regional Medical Center
38660 Medical Center Drive, Suite A-120
Palmdale, CA 93551
Tel: (661) 341-4639
Fax: (323) 865-3671





Marjun Philip Duldulao, M.D. completed his general surgery training in Southern California at Loma Linda University Medical Center. He published in many peer-reviewed journals and received numerous awards while concluding a research fellowship at City of Hope. Dr. Duldulao’s research focused on identifying markers associated with pathologic complete response in rectal cancer patients treated with chemoradiation therapy. Dr. Duldulao 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. His primarily practice locations include Palmdale Regional Medical Center and Verdugo Hills Medical Center, but also sees patients at other locations.


  • Merit Award – American Society of Clinical Oncology – GI Symposium
  • Best Resident Paper – American College of Surgeons, Southern California Chapter
  • Best Basic Science Presentation in Rectal Cancer – American Society of Colon and Rectal Surgeons
  • Colorectal Cancer Research Scholar
  • Physician-in-Training Cancer Research Paper Competition – Commission on Cancer

Areas of Clinical Expertise

  • Minimally invasive colon and rectal surgery
  • Robotic assisted colon and rectal surgery
  • Colon, rectal and anal cancer
  • Hereditary polyposis syndrome
  • Diverticulitis
  • Inflammatory bowel disease: Crohn’s and ulcerative colitis
  • Minimally invasive treatment of hemorrhoids
  • Anal fissures, fistula, pilonidal disease
  • Screening and therapeutic colonoscopy


  • Minimally invasive surgery
  • Inflammatory bowel disease
  • Quality improvement and outcomes in colorectal surgery

Board Certification

  • American Board of Surgery: General Surgery
  • Board Eligible: American Board of Colon and Rectal Surgery

Professional Society Memberships


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Appointments (323) 865-3690


USC Colorectal Surgery
1450 San Pablo Street
Healthcare Consultation Center 4
Suite 6200
Los Angeles, CA 90089

Phone: (323) 865-3690
Fax: (323) 865-3671

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