William Mark Barnett, MD

Mercy Clinic
William Mark Barnett, MD, Mercy

William Mark Barnett, MD

Specialty

  • Family Medicine

Online Services

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Location and Contact Information

About William Mark Barnett, MD

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      Education
      Medical School
      • University of Missouri - Columbia
      Residency
      • University of Missouri - Columbia-Family Medicine
      Specialty
      Board Certifications
      • American Board of Family Medicine
      Affiliations
      • Mercy Hospital Cassville
      • Mercy Hospital Aurora
      • Mercy Hospital Lebanon
      • Mercy St. Francis Hospital
      • Mercy Hospital Springfield
      Languages
      • English
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      View all Family Medicine providers.
      Looking for more options?
      Find the Mercy provider who's right for you.
      View all Family Medicine providers.

      Patient Ratings and Comments

      Rating

      From 413 patients
      (4.9/5)
      The provider rating is an average based on Mercy Clinic's post-care survey responses. To find out more, check out our frequently asked questions.

      Comments

      Viewing 1-3 of 128 comments
      Highlights from patients about their experience with this provider:
      • Jun 3, 2025
        (5/5)
        It was my first visit with Dr. Barnett and come to find out, I met him years ago when he was a UMR student and judged our school science fair. The entire staff was outstanding.
      • May 23, 2025
        (5/5)
        Dr Barnett is a consummate physician. He listens , explains, lets you be a part of your healthcare decisions and show concern.
      • May 15, 2025
        (5/5)
        Dr Barnett is definitely a pleasure to have as my primary physician, he was very pleasant to talk to and very informative.

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