Juan de la Ossa, M.D.

Principal Investigator
Associated Study Sites:
Board Certification in General Surgery, The American Board of Surgery

1145 Broadway

Seattle, WA 98122

Phone: 206.860.4761

Fax: 206.726.6023

Juan de la Ossa, M.D.

Dr. de la Ossa earned his medical degree from the University of Chicago Pritzker School of Medicine where he graduated with honors. He completed his internship and residency in general surgery at the University of Michigan Medical School, where he worked with some of the leading surgeons in the country. Prior to joining The Polyclinic, he was in practice in Santa Clara, California. Dr. de la Ossa's practice includes all areas of general surgery with a special interest in minimally invasive (laparoscopic) surgery and the evaluation and treatment of anal dysplasia.

As a member of The Polyclinic Tumor Board, Dr. de la Ossa participates in weekly meetings to discuss and determine best treatment plans for each newly diagnosed patient with breast cancer.

"Through my work I have come to recognize that surgery can be a painful and traumatic event. It is my practice philosophy to carefully listen and address each individual's concerns and fears, and to attempt to make the event as comfortable as possible. I also feel it is important to involve the patient in the decision-making process. As a team, we can formulate a plan that will provide the most successful outcome."

He teaches at the University of Washington surgery residents via Swedish Medical Center/Providence campus and Surgery residents via Swedish Medical Center/Main campus.

Dr. De la Ossa speaks French and Spanish


  • The University of Michigan, Internship and Residency in General Surgery, Lazar J. Greenfield, M.D., Chairman, 1998
  • M.D., University of Chicago Pritzker School of Medicine, 1993
  • B.A., Brown University,1989
  • Center for Undergraduate Programs Abroad, Institut d’Etudes Politiques, Paris, France, 1988