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Faculty & Staff

Andreas M. Kaiser, M.D., F.A.C.S.

Andreas M. Kaiser, M.D., F.A.C.S., F.A.S.C.R.S.
Professor of Clinical Surgery
Department of Surgery / Division of Colorectal Surgery

Keck School of Medicine of USC

USC Norris Cancer Center and Hospital
1441 Eastlake Avenue, Suite 7418
Los Angeles, CA 90033-4612
Tel: (323) 865-3690
Fax: (323) 865-3671



Forms and Downloads

Curriculum Vitae

CV: Andreas M. Kaiser, M.D., F.A.C.S., F.A.S.C.R.S.



Colorectal BookPlease check out my colorectal book "McGraw-Hill Manual Colorectal Surgery" available online at:

Colorectal surgery presented in at-a-glance bulleted lists/tables. Concise chapters, high-yield summaries of symptoms, diseases, differential diagnoses, management, complications, step-by-step technical instructions for operations. Ideal companion for students, residents, fellows, and established professionals to get a quick overview and refresher on-the-go.


PodcastPodcast - Dr. Kaiser (Diverticulitis and indications for surgery)



  • Keck Medical Center of USC
  • USC Norris Comprehensive Cancer Center and Hospital
  • Huntington Memorial Hospital
  • Glendale Adventist Medical Center


Areas of Treatment

Enter spectrum of colorectal cancer:
  • Rectal Cancer
  • Colon Cancer
  • Rectal Cancer
  • Hereditary cancer (FAP, Lynch, and others)
  • Anal Cancer
  • Primary cancer, Recurrent Cancer, Palliative Setting
  • Complex pelvic redo surgery in team work with urology, orthopedic/neurosurgery, liver surgery
Inflammatory Bowel Disease (Ulcerative Colitis, Crohn's Disease):
  • Sphincter-Saving Surgery for Cancer or Inflammatory Bowel Disease

Transanal Endoscopic Microsurgery for Rectal Polyps and Cancer (TEMS)
Continence Preservation
Continent Ileostomy (Kock Pouch, T-Pouch)
Acute Diverticulitis
Functional Disorders of the Colon and Rectum (Prolapse, Constipation, Pelvic Floor Dysfunction)
Benign Disorders of the Anus (Hemorrhoids, Anal Fissures, Anorectal Abscess, Colorectal Fistulas, Rectovaginal Fistulas, Pilonidal Disease, Pruritus Ani, STDs)

Minimally invasive surgery:

  • Robotic Surgery
  • Laparoscopic Surgery, including 3D laparoscopy
  • Transanal Endoscopic Microsurgery (TEMS)
  • Transanal Minimally Invasive Surgery (TAMIS)

Transfusion-Free Surgery / Jehovah's Witness program

Fecal Incontinence, including:

  • Sphincter reconstruction
  • Sacral Nerve Stimulation (Interstim)
  • Artificial Bowel Sphincter (ABS, Neosphincter), Magnetic Ring (Fenix)
  • Secca Procedure
  • Solesta Injection

Pelvic floor dysfunction, pelvic organ prolapse Stapled hemorrhoidectomy (PPH) Anophysiology Testing (Manometry, EMG, Endorectal Ultrasound, Pudendal Nerve Testing) Colonoscopy


  • Colorectal Surgery


Andreas M Kaiser, MD FACS FASCRS, a Professor of Clinical Surgery, has been on the faculty and in practice at USC since 2000. He graduated in 1988 from the University of Zurich in Switzerland. After an internship in Surgical Pathology, Dr. Kaiser trained in General Surgery at the University Hospital of Zurich (1990-1998), enhanced by a two-year research fellowship at Harvard Medical School/Beth Israel Hospital in Boston. He also completed a fellowship in Visceral Surgery at the University Hospital in Zurich, and in Colorectal Surgery at the Keck School of Medicine at USC. From 2008-2009, Dr. Kaiser served as the Interim Chairman of the Department of Colorectal Surgery at USC. He is board-certified by the Swiss Board of Surgery in General Surgery (1998) and Visceral Surgery (2006), and by the European Surgery Qualification Board in Coloproctology (2002). He is a Fellow of the American College of Surgeons (FACS) and the American Society of Colon and Rectal Surgeons (FASCRS), and a member of several national and international professional associations and committees.

Dr. Kaiser has extensive experience in every aspect of even the most complex colorectal diseases. He serves as a referral center for challenging pathologies that may be beyond the scope of many other hospitals. Comprehensive and interdisciplinary treatment in the management of advanced colon cancer, rectal cancer, and anal cancer (primary, recurrent cancers, palliative setting) are as much routine as are inflammatory bowel disease (ulcerative colitis, Crohn’s disease), acute diverticulitis, functional disorders of the colon and rectum, and benign disorders of the anus. He has been instrumental and at the forefront in evaluating and adapting the newest technologies including robotic surgery, 3D-laparoscopic surgery, TEMS and advanced endoscopies, or sacral nerve stimulation and implants for fecal incontinence; he is one of few experts nationwide who understand and perform continent ileostomies, and he was instrumental in the development of the T-pouch. He is an expert for evaluation and treatment of fecal incontinence and not only offers sacral nerve stimulation but is also one of few surgeons who implanted the Artificial Bowel Sphincter or the magnetic ring (Fenix).

Dr. Kaiser's major areas of research interest include Colorectal Cancer, Inflammatory Bowel Disease, Diverticulitis, and Fecal Incontinence. Dr. Kaiser is not only committed to patient-care, but also to research and education.

He has written numerous articles, book chapters, as well as his own book, McGraw-Hill Manual of Colorectal Surgery". He is one of the editors of “Chassin’s Operative Strategy in Surgery”, and the “SAGES Manual in Colorectal Surgery”.

He is Editor-in-Chief of "Clinical and Experimental Gastroenterology", and Associate Editor of Diseases of the Colon and Rectum", the official journal of the American Society of Colon and Rectal Surgeons; in addition, he serves among others on the editorial boards of “Surgical Endoscopy”, the "World Journal of Gastroenterology", and "World Journal of Gastrointestinal Pathophysiology". He serves/served as a member of several national committees of various societies (membership committee (chair), standards committee, program committee, CME committee, publications committee, guidelines committee). He served as Guest Editor on Hereditary Colorectal Cancer for "Seminars in Colon and Rectal Surgery", and was the lead author on a ASCRS Task Force for “New Technologies for Fecal Incontinence. He is a member of the NIH Advisory Board for the Pelvic Floor Dysfunction Network of the National Institutes of Health.


  • Swiss Federal Diploma as Physician, University of Zurich, 1988
  • Doctor of Medicine, University of Zurich, 1989
  • City of Zurich Hospital Triemli, Pathology, 1989 - 1990
  • University Hospital of Zurich, Surgery and Pediatric Surgery, 1990 - 1993,  1995 - 1998


  • Harvard Medical School, Beth Israel Hospital, Surgical Research, 1993 - 1995
  • University Hospital of Zurich, Visceral Surgery, 1998 - 2000
  • USC Division of Colorectal Surgery Colon and Rectal Surgery, 2000 - 2001

Board Certification

  • FMH Swiss Board Certification in General Surgery, 1998
  • European EBSQ Board Certification in Coloproctology, 2002
  • FMH Swiss Subspecialty Board Certification in Visceral Surgery, 2006

Professional Society Memberships


  • English
  • French
  • German
  • Italian


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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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