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Experience

Education

University of Minnesota, Minneapolis, Medical School

Residency

University of Michigan, Ann Arbor, Internal Medicine

Fellowship

University of Iowa, Iowa City, Pulmonary and Critical Care

Certifications

American Board of Internal Medicine; American Board of Internal Medicine-Pulmonary Disease; American Board of Internal Medicine-Critical Care

Reviews

We value patient feedback and are committed to providing you with information, so you can make informed decisions about your health care, physicians and other providers in your care journey. Patient ratings and comments are gathered from the post-visit experience survey. Learn more.

December 29, 2025
Physician was very thourough. She explained everything so that we could understand it.
December 15, 2025
I really like Groskreutz. She listens and asks questions. Digs into what is wrong.
December 14, 2025
Dr. G, RN, and Resp Tech were top notch. Resp Tech made the tests very easy. She is very encouraging and takes away your apprehension. The nurse is professional, comforting and a wonderful listener. Dr. G is amazing! She knows me and her care and concern for me and my health is off the charts! I have complete trust in everything she says. This retired educator gives my experience an A+.
December 12, 2025
Excellent experience!
December 04, 2025
Very pleased, and feel it is important to them to provide the best care possible
November 21, 2025
Dr Groskreutz is an amazing pulmonologist, we talk through everything and she listens! The nurse is also a wonderful nurse and together they are a great team!!
November 11, 2025
All A+
November 06, 2025
Dr was exceptional
October 28, 2025
I have always loved the way Dr explains things and also takes a look at me as a person and is very personable. She is one of my favorite Dr's and her Nurse the same. They are doing things right for patients, making a connection with their patients. I always highly recommend this staff, don't change a thing
October 05, 2025
All was good.
October 05, 2025
I love Dr Dayna and her nurse
September 28, 2025
Very pleased with my appointment.
September 23, 2025
Have been a pulmonary patient a long time. Staff has always been good.
September 07, 2025
Dr. Dayna G is a lovely physician. She explains my problems throughout the exam.Informs of what her plans for the future and how she will interact with my primary care physician.
September 07, 2025
Actually it was a ten.
August 24, 2025
Staff is very informative
August 20, 2025
Nothing it was great
August 14, 2025
Love Dr. Dayna. She never acts like she has a busy schedule. She is a good listener & I am so thankful for her.
August 13, 2025
Very pleased with all involved
August 11, 2025
Listened very well, and.made you feel at ease. Explained things so I could understand them.
June 03, 2025
All care was awesome!
June 01, 2025
Attentive listener, genuine concern for my well-being, professional but kind. First class doctor.
May 30, 2025
Both were very professional, and I can't say enough how much empathy they exhibited towards my condition
May 30, 2025
Dr Dayna G is excellent. Spends time explaining all test results. She is very patient and kind to me and she is a very caring doctor. I receive (every time I've seen her) excellent care from her.
May 23, 2025
Very pleased with Dr. Listened to my problem. Had good recommendations to help my breathing
May 03, 2025
Dr is awesome, helpful, is attentive in listening to my concerns and always has my best interest at heart.
May 02, 2025
Dr Dayna was very thorough with her explanations
May 02, 2025
Dr. Dayna is kind and patient and really listens to my concerns
April 12, 2025
Doctor was very informative
March 25, 2025
My care provider is great!
March 22, 2025
Dana is amazing! She probably spent at least 30 minutes with me, answered all my questions in a way that I could understand and she is very knowledgeable and through. The person who did the breathing test is great. Explained what was going to happen before the testing and made me feel very comfortable.
March 21, 2025
Excellent doctor! Very caring and thoughtful.
March 20, 2025
She took the time to educate me on my diagnosis and what will happen as well as what might need to be done.
March 19, 2025
Outstanding
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Directory Disclaimers

This directory contains information about the provider members of Independent Health Care Associates, Avera Health and all Avera entities, members of the Avera Medical Group, and employed select providers with Avera McKennan, Sioux Falls, SD and Avera Marshall, Marshall, MN and physicians with hospital privileges at Avera St. Luke's, Aberdeen, SD; Avera Sacred Heart, Yankton, SD; Avera Queen of Peace, Mitchell, SD; Avera St. Mary's, Pierre, SD.

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