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    Dr. Drennan's Overview

    Dr. Drennan graduated from the Yale University School of Medicine in 1982. He works in Seattle, WA and 2 other locations and specializes in Gastroenterology. Dr. Drennan is affiliated with Overlake Hospital Medical Center and Virginia Mason Medical Center.

    Dr. Drennan's Experience

    Years in Practice: 34

    Dr. Drennan's Specialties


    Dr. Drennan's Education & Training

    Medical School: Yale University School of Medicine; Graduated 1982

    Dr. Drennan'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. Drennan's Accepted Insurance

    Please verify insurance information directly with your doctor's office as it may change frequently.

    • Aetna Managed Choice POS
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Aetna Whole Health Pacific Medical Centers WA
    • BCBS Blue Card PPO
    • CIGNA Open Access Plus
    • First Choice
    • First Health PPO
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    Dr. Drennan's Office Information & Appointments

    Office Locations

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

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