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Mark Zittergruen
Patient Rating
4.9 / 5 (Based on 108 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

Education

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

Residency

The University of Iowa Hospitals and Clinics

Fellowship

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.

  • 2025 Nominee for Patient Advocate award
  • 2017 Winner, Colleague award
  • 2016 Nominee for Patient Advocate Award
  • 2016 Nominee for Mentor/Educator Award, one of Mercy's Annual Provider Awards

Certifications

  • 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

5.0
August 18, 2025
I would recommend Dr. Zittergruen to anyone! He's always very friendly and excellent at explaining things and answering questions. You always feel like you are his most important patient.
5.0
July 22, 2025
Explained everything so well and was able to provide the care with ease
5.0
March 12, 2025
This doctor is always amazing and listens to any concerns we have. He really made my son feel at ease.
5.0
December 21, 2024
We love Dr Zittergruen. He is always friendly and concerned about changes .
5.0
November 18, 2024
Mark Zittergruen was, as always, kind, informative, considerate, and respectful.
5.0
August 20, 2024
Dr. Zittergruen is always patient and thorough in answering our questions.
5.0
August 20, 2024
Love Dr. Zittergruen. My only concern is that he may retire and I don't want that to happen..... Selfishly. :)
5.0
July 09, 2024
Very comfortable with Dr. Zittergruen, in what is a very tough situation. We really appreciated that. Thank you so much.
5.0
June 14, 2024
Dr Zitturgren is outstanding. After the appointment my 16 year old daughter (the patient) said "the doctor talked to ME." Usually doctors ignore me half the time and just talk to the parent.
5.0
May 12, 2024
I would recommend
5.0
May 09, 2024
Will always recommend zittergruen. He is such an amazing cardiologist
5.0
May 07, 2024
Dr Z was absolutely amazing! He listened to our concerns. He was very thorough. He explained things so we could understand. He demonstrated a lot of sincerity for our daughter. He was patient, not rushed and spent a lot of time with us. He was awesome!!
5.0
April 23, 2024
Dr. Mark was amazing. Felt at ease and respected from the second he walked in the room!
5.0
January 31, 2024
My son and I love Dr. Mark, Jess, and the whole crew that take care of him while we are there. It would be so nice to visit more often, but it is a good thing we don't HAVE to! Dr Mark and Jess have been our providers for so long it is always a joy to see them.
4.6
January 25, 2024
He really cared about her as a person even though she was a teenager. Gave good recommendations.
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Provider's Contact Information

Mercy Pediatric Cardiology Clinic website

Locations

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.