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    Denise M. Harnois, DO


    Dr. Harnois's Overview

    Dr. Harnois graduated from the Philadelphia College of Osteopathic Medicine in 1990. She works in Rochester, MN and specializes in Gastroenterology. Dr. Harnois is affiliated with Mayo Clinic Health System-New Prague and Mayo Clinic Hospital-Rochester Methodist Campus.

    Dr. Harnois's Experience

    Years in Practice: 27

    Dr. Harnois's Specialties


    Dr. Harnois's Education & Training

    Medical School: Philadelphia College of Osteopathic Medicine; Graduated 1990

    Dr. Harnois'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. Harnois's Accepted Insurance

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

    • BCBS Blue Card PPO
    • CIGNA Open Access Plus
    • Florida Blue BlueOptions
    • Multiplan PPO
    • PHCS PPO
    • UHC Choice Plus POS
    • UHC Options PPO
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    Dr. Harnois's Office Information & Appointments

    Office Locations

    Mayo Clinic

    200 1st St SW Mayo East 9
    Rochester, MN 55905
    (507) 284-2511


    Office Hours and Information

    Fax: (507) 284-0538

    Practice Website:

    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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