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Mark Zittergruen
Patient Rating
4.9 / 5 (Based on 86 Reviews)

Mark Zittergruen, MD, FAAP, FACC, MBA

Specialties: Cardiology and Pediatric Cardiology

Schedule an Appointment

To schedule an appointment with Mark Zittergruen, please call 319-398-6650

Year joined staff: 2016

Education and Training


University of Iowa College of Engineering, BS in Biomedical Engineering
University of Iowa Tippie College of Management, Masters in Business Administration
The University of Iowa College of Medicine, Doctor of Medicine


The University of Iowa Hospitals and Clinics


The University of Iowa Hospitals and Clinics

Professional Memberships

  • American Academy of Pediatrics, Fellow
  • American College of Cardiology, Fellow
  • American Heart Association
  • Linn County Medical Society
  • Iowa Medical Society
  • Alpha Omega Alpha
  • Tau Beta Pi (National Engineering Honor Society)

Honors, Awards, etc.

  • 2017 Winner, Colleague award
  • 2016 Nominee for Patient Advocate Award
  • 2016 Nominee for Mentor/Educator Award, one of Mercy's Annual Provider Awards


  • American Board of Pediatrics
  • American Board of Pediatric Cardiology

Personal Interests

Dr. Zittergruen and his wife are the parents of five daughters and enjoy spending time with them at home and with their activities. He especially enjoys music and plays piano for Mass at his church. His hobbies include reading mystery novels, board games and puzzles, watching the Hawkeyes, and "pretending to be a gardener."

Patient Reviews

September 14, 2021
Really liked the Dr. He thoroughly explained and showed us how the heart worked.. Talked with my son about school and sports & also the importance of staying hydrated hearing it from someone professional kinda sunk in more than hearing it from his parents Overall very happy with visit!
September 07, 2021
I was very satisfied and impressed with the doctor and all his associated staff. Would highly recommend to anyone.
August 27, 2021
I just didn't feel listened too
August 26, 2021
Dr Zittergruen was wonderful. He was very thorough and very easy to understand. He answered all my questions .His manner was also pleasing.
August 20, 2021
Everyone we came in contact with was amazing! Very friendly and helpful.
August 10, 2021
Dr. Zittergruen is the best! He always has plenty of time to answer our questions, and makes sure that we know what our options for treatment are.
July 07, 2021
We really appreciate the time the doctor spent talking to my daughter and myself about her condition and medication she was taking and could possibly have to take. We both left the office feeling much better about medication plan she was going to try.
June 18, 2021
love Dr Zittergruen- he's the best!!
June 14, 2021
he was very informative and very nice. He made it very easy with a baby.
May 13, 2021
I was very happy with Dr. Zittergruen and his knowledge, kindness, and willingness to explain things to me. He made me feel very reassured about my son and I was happy with the experience overall.
April 27, 2021
Dr. Zittergruen did a phenomenal job!
April 27, 2021
We were very happy with our Dr. We will definitely recommend him!! Can't wait to go back to see the nurse and Dr!!
March 13, 2021
Dr Z does a great job or explaining things and allowing us input into our care plan!
March 08, 2021
took time to explain EVERYTHING! He talked TO my daughter (she's 16), looking at her the entire time! drew pictures to explain things. asked her personal interests and very engaging. just a wonderful experience
January 27, 2021
He didn't seem rushed and took his time with us.
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Provider's Contact Information

Mercy Pediatric Cardiology Clinic website


Patient Stories

A Little Warrior's Big Battle

Hayley Ballew had a feeling something wasn't right as she nursed her newborn son, Carter, in September 2016. I could tell he was latching really well, but he had to let off to take a breath," the Marion mother of two remembers. Hayley and her husband, Eric, noticed Carter's head bobbed slightly with each breath and his chest retracted in unusual places. Read their story on page 6.