Photo of Dr. I. Benjamin Paz, MD

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Dr. I. Benjamin Paz is an oncologist in South Pasadena. He provides diagnostic and treatment services for patients suffering from all types of cancer.

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I. Benjamin Paz, M.D. is a nationally renowned surgical oncology surgeon, with expertise in breast cancer, gastrointestinal and rectal cancers, and tumors involving the bone and soft tissues. Dr. Paz is highly experienced with minimally invasive, laparoscopic and robotic-assisted gastrointestinal and colorectal surgery and has developed one of the leading centers for minimally invasive surgery in oncology in California. Dr. Paz’s research interests focus on the early diagnosis and prevention of breast cancer and the identification of high-risk patients that will benefit for new screening strategies. He is particularly interested in developing new methods for minimally invasive surgery and cancer treatment that improve patient’s function, quality of life, and cancer outcome in patients with breast and gastrointestinal cancers. Working with other doctors and scientists at City of Hope, he is involved in developing new methods of breast cancer detection in nipple aspirate and in the prevention of breast cancer with natural substances.

Education & Training  

Medical School


  • University of Arizona
    Residency, General Surgery • 1985 - 1990


  • City of Hope
    Fellowship, Surgical Oncology

Hospital Affiliations

  • City of Hope

Special Interests  

  • Breast Cancer
  • Developmental Cancer Therapeutics
  • Musculoskeletal Tumors
  • Surgery
  • Surgical Oncology

Languages Spoken  

  • English
  • Spanish

City of Hope (South Pasadena)  


209 S. Fair Oaks, South Pasadena, California 91030

Office Details

Doctor Specialty Oncology
Practice SpecialtyMulti-specialty
Group PracticeCity of Hope Medical Foundation
Practice OwnershipCity of Hope
Hospital Affiliation
  • City of Hope
Languages Spoken English

Insurances Accepted  

  • BlueCross BlueShield
  • WellPoint