Dr. Mark Dion, MD


Radiation Oncology | Male

Dr. Mark Dion, MD

Dr. Mark Dion, MD is a radiation oncology doctor who practices in Clinton, IA. He is 65 years old and has been practicing for 40 years. Dr. Dion is affiliated with Mercy Medical Center - Clinton.

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Dr. Dion's Experience

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Memberships & Professional Affiliations

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Visiting Dr. Dion

Dr. Dion accepts 6 insurance carriers

Dr. Dion is now accepting new patients

Affiliated Hospitals

Hospital Quality
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Dr. Dion's Reviews

Likelihood of recommending Dr. Dion to family and friends
based on 2 total reviews (2 with comments)
Dr. Dion's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    Under 10 minutes
Patient Comments (2)
erie, il |
I found Dr. Dion to be professional. During my treatment he paid attention to my level of care and how I was doing as his patient. He and staff answered all questions I had and made my experience as pleasant and doable as possible. The Staff there is special. The courtesy,thoughtfulness, and concern in managing patient care made me at ease with treatment. Thank You. I recommend Dr. Dion and Radiation Oncology of Clinton.
in Clinton, IA |
The doctor is arrogant, negative and disrespectful when speaking to his patients Besides closing his eyrs for the majority of a conversation, which could be for a number of reasons, but in this case only adds to the negative experience due to poor patient relation and communication. The office and nursing staff are wonderful but I have a feeling he's in Clinton because Iowa City doesnt want him
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Dr. Dion's experience matches your search based on the following criteria:

  •  Based on total number of patients treated over the last 12 months
  •  Specializes in Radiation Oncology
  •  Board certified in Radiation Oncology
  •  Malpractice claims in Iowa not available
  •  No sanctions found
  •  No board actions found

Awards & Recognition

  • Awards & Honors
    • Healthgrades Honor Roll
    What is a recognized doctor
  • Media & Publications

    Dr. Dion has no media or publications listed.

Background Check

  • n/a
    Malpractice Claims not available

    Healthgrades does not collect malpractice information for Iowa.

    What is medical malpractice
  • 0

    No sanctions history found for the years that Healthgrades collects data.

    What is a sanction or disciplinary action
  • 0
    Board Actions

    No board actions found for the years that Healthgrades collects data.

    What are board actions

Board Certifications

Why It Matters: Dr. Dion's Board Certifications

Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

  • Radiation Oncology

Conditions Treated

  • Cancer
  • Gynecologic Cancer


  • Medical School
    University Of Colorado At Denver

    Graduated in 1977

Languages Spoken

  • English
  • Spanish

Memberships &
Professional Affiliations

Dr. Dion does not have any memberships or affiliations listed. If you are Dr. Dion and would like to add memberships or affiliations, please update your free profile.


  • Radiation Oncology

Procedures Performed

Dr. Dion does not have any procedures listed. If you are Dr. Dion and would like to add procedures you perform, please update your free profile.