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    Dr. William G. O'callaghan, MD

    Cardiovascular Disease, Interventional Cardiology

    • (956) 682-1888

    Dr. O'callaghan's Overview

    Dr. O'callaghan graduated from the Univ Coll of Dublin, Nat'l Univ of Ireland, Fac of Med, Dublin, Ireland in 1977. He works in McAllen, TX and specializes in Cardiovascular Disease and Interventional Cardiology. Dr. O'callaghan is affiliated with Rio Grande Regional Hospital.

    Dr. O'callaghan's Experience

    Years in Practice: 39

    Dr. O'callaghan's Specialties

    Cardiovascular Disease, Interventional Cardiology

    Dr. O'callaghan's Education & Training

    Medical School: Univ Coll of Dublin, Nat'l Univ of Ireland, Fac of Med, Dublin, Ireland; Graduated 1977

    Dr. O'callaghan's Rating

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    Overall Rating


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

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

    • Aetna Choice POS II
    • Aetna Managed Choice POS Open Access
    • Aetna Signature Administrators PPO
    • Ambetter Superior Health Plan
    • BCBS Blue Card PPO
    • BCBS TX Blue Advantage HMO
    • BCBS TX BlueChoice
    • CIGNA Open Access Plus
    • First Health PPO
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    Dr. O'callaghan's Office Information & Appointments

    Office Locations

    Heart Institute Renaissance

    100 E Ridge Rd Ste A
    McAllen, TX 78503
    (956) 682-1888


    Office Hours and Information

    Fax: (956) 661-2204

    Practice Website: Not Available

    Accepting New Patients: Yes

    Medicare Accepted: Yes

    Medicaid Accepted: Yes

    Monday 8:00 AM - 5:00 PM
    Tuesday 8:00 AM - 5:00 PM
    Wednesday 8:00 AM - 5:00 PM
    Thursday 8:00 AM - 5:00 PM
    Friday 8:00 AM - 5:00 PM
    Saturday Closed
    Sunday Closed

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