Dr. Rena Desai Callahan MD Medical Oncologist

Dr. Rena Callahan is a medical oncologist in Los Angeles, California. She is affiliated with multiple hospitals in the area, including Henry Mayo Newhall Memorial Hospital and Ronald Reagan University of California Los Angeles Medical Center. She received her medical degree from Perelman School of Medicine at the University of Pennsylvania and has been in practice for 10 years. Dr. Callahan accepts several types of health insurance, listed below. She is one of 4 doctors at Henry Mayo Newhall Memorial Hospital and one of 35 at Ronald Reagan University of California Los Angeles Medical Center who specialize in Medical Oncology.

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Office Location

See Contact Information

Specialty & Clinical Interests

Medical Oncologist: General Oncology, Breast Cancer, Hematologic, Complementary and Integrative

Education & Medical Training

UCLA Medical Center
Residency, Internal Medicine, 2004 - 2007

UCLA Medical Center
Fellowship, Hematology/Oncology, 2008 - 2011

Perelman School of Medicine at the University of Pennsylvania
Class of 2004

Certifications & Licensure

American Board of Internal Medicine
Certified in Hematology

American Board of Internal Medicine
Certified in Internal Medicine

American Board of Internal Medicine
Certified in Medical Oncology

CA State Medical License
Active through 2014

Insurances Accepted

  • Aetna Choice POS II
  • Aetna HMO
  • BCBS Blue Card PPO
  • BCBS California CaliforniaCare HMO
  • BCBS California PPO
  • CIGNA HMO
  • CIGNA Open Access
  • CIGNA PPO
  • First Health PPO
  • Great West PPO
  • Health Net California Large Group PPO
  • Health Net HMO - Employer Group
  • Multiplan PHCS PPO
  • Multiplan PHCS PPO - Kaiser
  • Multiplan PPO
  • Pacificare HMO
  • United Healthcare - Direct Choice Plus POS
  • United Healthcare - Direct Options PPO
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