Philip L. Chatham, M.D.

  • Assistant Clinical Professor, Department of Medical Oncology & Therapeutics Research
  • Medical Oncologist

Philip L. Chatham, M.D.

Clinical Specialties
  • Medical Oncologist
Areas of Expertise
  • Hematology/Oncology
Other Languages Spoken
  • Malayalam (Southern India)
Philip L. Chatham, M.D. joins City of Hope after nearly four decades of quality patient care in the Granada Hills, California, community. As a hematologist/oncologist, he is excited about the “almost daily new drugs coming to clinical trial,” especially in the growing field of immunology.

Educated in India, Dr. Chatham continued his medical training in the U.S., interning at Cook County Hospital in Chicago, and served residencies at New York’s Catholic Medical Center of Brooklyn and Queens and the VA’s Harbor Healthcare System. He completed a hematology fellowship at Albert Einstein College of Medicine and a fellowship in oncology at Los Angeles County + USC Medical Center.
In addition to his many years in private practice, Dr. Chatham served on staff at Providence Holy Cross and Henry Mayo Newhall medical centers in the North Valley. He’s active in the community, serving as a sponsor for the Relay of Life for the American Cancer Society of Santa Clarita Valley.
  • 2017-present, Assistant Clinical Professor, Department of Medical Oncology & Therapeutics Research, City of Hope, Mission Hills, California
  • 2016-2017, Physician, Medical Oncology and Hematology, Hematology-Oncology Medical Group of the San Fernando Valley, Granada Hills and Van Nuys, California
  • 1979-2016, Medical Director, Medical Oncology and Hematology, Private Practice, Granada Hills, California
  • 1985-2011, Assistant Clinical Professor, Department of Medicine, University of California, Los Angeles, California

Mission Hills

15031 Rinaldi St., Suite 150, Mission Hills, CA, 91345

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Phone :  818-660-4700

Mission Hills Radiation Oncology

City of Hope Mission Hills Radiation Oncology, 15031 Rinaldi St., Mission Hills, CA, 91345

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Phone :  818-496-4410

Santa Clarita

23823 Valencia Blvd., Suite 250, Santa Clarita, CA, 91355

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Phone :  661-799-1999


  • 1968, Doctor of Medicine and Bachelor of Arts, University of Kerala, India/Government Medical College, Trivandrum, India


  • 1978-1979, Clinical Fellowship, Medical Oncology, LAC+USC Medical Center, Los Angeles, California
  • 1975-1977, Clinical Fellowship, Medical Oncology, Albert Einstein College of Medicine, Bronx, New York


  • 1974-1975, Residency, Internal Medicine, Catholic Medical Center of Brooklyn and Queens, Queens, New York
  • 1973-1974, Residency, Internal Medicine, VA NY Harbor Healthcare System, Brooklyn, New York


  • 1973, Rotating Internship, Internal Medicine, Cook County Hospital, Chicago, Illinois
  • 1972, Rotating Internship, Internal Medicine, Little Company of Mary, Evergreen Park, Illinois
  • Super Doctor, 2003
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