Skip to content

    Physician Directory

    Find a Doctor

    Dr. Mary M. Hennessy, MD

    Psychiatry, Child & Adolescent Psychiatry

    • (715) 387-5511

    Dr. Hennessy's Overview

    Dr. Hennessy works in Marshfield, WI and specializes in Psychiatry and Child & Adolescent Psychiatry. Dr. Hennessy is affiliated with Ministry Saint Michaels Hospital and Ministry St Josephs Hospital.

    Dr. Hennessy's Experience

    Years in Practice: Not Available

    Dr. Hennessy's Specialties

    Psychiatry, Child & Adolescent Psychiatry

    Dr. Hennessy's Education & Training

    Medical School: Not Available

    Dr. Hennessy's Rating

    Rate This Doctor

    Overall Rating


    • Explains conditions & treatments
    • Takes time to answer my questions
    • Provides follow-up as needed
    • View All Ratings

    Dr. Hennessy's Accepted Insurance

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

    • Not Available

    Dr. Hennessy's Office Information & Appointments

    Office Locations

    Marshfield Clinic

    1000 N Oak Ave
    Marshfield, WI 54449
    (715) 387-5511


    Office Hours and Information

    Fax: (715) 387-5754

    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 8:00 AM - 5:00 PM
    Sunday 8:00 AM - 5:00 PM

    Other Physicians in Dr. Hennessy's Practice

    Dr. Hennessy's Hospital Affiliations

    Office Locations

    Other Psychiatrists Near Marshfield, WI

    View More Psychiatrists