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Dr. Rena D. Callahan, MD


  • (661) 255-5350

Dr. Callahan's Overview

Dr. Rena D. Callahan graduated from the University of Pennsylvania School of Medicine in 2004. She works in Valencia, CA and 1 other location and specializes in Hematology/Oncology. Dr. Callahan is affiliated with Henry Mayo Newhall Hospital, Huntington Memorial Hospital, Ronald Reagan UCLA Medical Center and Santa Monica UCLA Medical Center.

Dr. Callahan's Experience

Years in Practice: 11

Conditions Treated by Dr. Callahan

  • Not Available

Procedures Performed by Dr. Callahan

  • Not Available

Dr. Callahan's Specialties


Dr. Callahan's Education & Training

Medical School: University of Pennsylvania School of Medicine; Graduated 2004

Dr. Callahan's Rating

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  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Callahan's Accepted Insurance

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna HMO Deductible Plan CA members only
  • Aetna Managed Choice POS Open Access
  • Aetna Savings Plus of CA
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • Blue Cross CA Advantage PPO Preferred DirectAccess Plus
  • Blue Cross CA CaliforniaCare HMO
  • Blue Cross CA Pathway X PPO Direct Access
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Dr. Callahan's Office Information & Appointments

Office Locations

*This physician has multiple office locations. See Office Information for details.

Other Physicians in Dr. Callahan's Practice

Office Locations

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