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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: 12

    Procedures Performed by Dr. Callahan

    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 PPO Prudent Buyer Small Group
    • Blue Cross CA Advantage PPO Preferred DirectAccess Plus
    • Blue Cross CA CaliforniaCare HMO
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    Dr. Callahan's Office Information & Appointments

    Office Locations

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

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