N. Simon Tchekmedyian, M.D., F.A.C.P.

Dr. N. Simon Tchekmedyian has practiced medical oncology in the Southern California community since 1986, after completing hematology and oncology training at the University of Maryland Cancer Center in Baltimore, Md. Dr. Tchekmedyian is a diplomat of the American Board of Internal Medicine and Medical Oncology, a fellow of the American College of Physicians, a clinical professor of medicine at the David Geffen School of Medicine at the University of California, Los Angeles, and a teaching head and director of oncology at St. Mary Medical Center. He is also founder and medical director of Pacific Shores Medical Group, one of the largest oncology practices in the country with a staff of more than 150 professionals in five offices in southern California.

Dr. Tchekmedyian’s pursuit of new treatments to improve the cure rate and to enhance the quality of life of cancer patients has been passionate and relentless. He has been a clinical investigator in more than 350 cancer research studies and has contributed more than 150 scientific publications to the medical literature.  His original observations as reported to the American Association of Cancer Research in 1986 and published in the Journal of the American Medical Association in 1987 led to a new medication to reverse the lack of appetite and weight loss of patients. Highlights of his clinical research efforts include new life-saving therapies that specifically target cancer cells and thus provide increased efficacy and reduced side effects; examples include a variety of monoclonal antibodies and new molecules, several of which have been approved for clinical use. In many instances, these efforts allowed cancer patients in Long Beach to be the first ones in the nation to have access to and receive these new therapies. He has also contributed to new treatments for anemia, nausea, bone disorders and other complications associated with cancer. 

Dr. Tchekmedyian has made more than 130 invited scientific presentations on new cancer treatments throughout the United States, as well as in more than 20 countries abroad. He has been repeatedly featured in the list of America’s Top Rated Physicians by the Washington, D.C.-based Center for the Study of Services, as well as in the list of Orange County Physicians of Excellence by the Orange County Medical Association and in the Guide to America’s Top Oncologists by the Consumers’ Research Council of America.

Dr. Tchekmedyian holds an M.D. from University School of Medicine in Montevideo, Uruguay.