Robert S. Nierzwicki, MD | Northwestern Medicine

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Atherosclerosis Prevention
Coronary Artery Disease
Echocardiography
General Cardiology
Lipid Disorders (Cholesterol and Triglycerides)
Preventive Cardiology
Sports Cardiology

Education

Medical Education:: MD, Loyola University Stritch School of Medicine - 2006
Residency:: Loyola University Medical Center - 2009
Fellowships:: Loyola University Medical Center - 2012

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)
American Board of Internal Medicine/Cardiovascular Disease - Cardiovascular Disease (Certified)
Council for Certification in Cardiovascular Imaging - Nuclear Cardiology (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage Hospital

Delnor Hospital

Northwestern McHenry Huntley & Woodstock Hospitals

Ratings and Reviews

At Northwestern Medicine, our patient’s feedback is important to us. While different care providers have their own unique strengths, we strive to be as transparent as possible with our quality of care.

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Overall Rating

4.9

4.9

1055 Ratings

Reviews from Patients

85 Reviews

Reviews from Patients

85 Reviews

February 20, 2026

5.0

I feel like I Trust him

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February 20, 2026

5.0

One of my best doctor that you can trust

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February 17, 2026

5.0

He's a great cardiologist!

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February 15, 2026

5.0

1:1 discussion was informative, effective and he took time to ask if I had questions and answered each. Dr. N also had reasonable expectations of my recovery and improvement plan based on my age and situation.

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February 10, 2026

5.0

He addressed all of my concerns and as well as medication, test results, future tests and symptoms to be aware of.

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February 06, 2026

5.0

Impressed with follow through.

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February 06, 2026

5.0

See above comments. Plus he screened me for the medication I was taking many years for cholesterol reduction and suspected this may have been causing me immense bone and muscle pain for a long time. He prescribed a new med as a trial that did not create pain. I was happy to try.

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February 05, 2026

5.0

efficie3nt, knowledgable, considerate

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February 04, 2026

5.0

Excellent bedside manner, listening to patient concerns, professional but personable prognosis

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February 03, 2026

5.0

Nice, pleasant, takes time to listen gives thorough examination

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January 28, 2026

5.0

Effecient

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January 27, 2026

5.0

Grateful for his kindness and knowledge, for taking time to figure out how to help me.

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January 26, 2026

5.0

Very bright with an excellent personality

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January 26, 2026

5.0

Dr Robert Nierzwicki showed me concern. Was kind and patience. His knowledge and suggestions gave me comfort and a secure feeling. He is an EXCELLENT doctor. I highly recommend him for cardiology care. I am very happy to be under his care!

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January 22, 2026

5.0

So smart. Sure and steady.

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January 15, 2026

5.0

Answered all of my questions and explained everything well.

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January 15, 2026

5.0

Always consistent and excellency care, very knowledgeable

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January 15, 2026

5.0

See above.....Doc N is great!

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January 09, 2026

5.0

He listens and is patient

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January 07, 2026

5.0

He is knowledgeable and listens.

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January 06, 2026

5.0

Thorough, knowledgeable, shows concern, and we developed an action plan.

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December 23, 2025

3.0

Nobody asks me about these things but I would recommend

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December 23, 2025

5.0

He is good and thorough in answering questions.

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December 13, 2025

5.0

Dr. Nierzwicki came highly recommended and I am comfortable with his assessment of my heart health.

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December 09, 2025

5.0

The doctor Nierzwicki is good and helping patients to be healthy.

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December 08, 2025

4.0

I like him

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December 04, 2025

5.0

Easy and Caring demeanor.

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December 02, 2025

5.0

Dr. Nierzwicki was very thorough during my new patient meeting with him. He gave thoughtful responses to all my questions and gave explanations for his rationale.

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December 02, 2025

5.0

Very accommodating and knowledgeable.

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November 14, 2025

5.0

Very nice knowledgeable doctor! Makes you feel good to have a visit with him.

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November 11, 2025

5.0

Excellent doctor, very professional, he always took my needs into account.

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November 11, 2025

5.0

Nice bedside manner. Took the time to answer all my questions.

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October 29, 2025

5.0

Very knowledgeable and comprehensive care

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October 29, 2025

5.0

He listens and truly seems to care.

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October 21, 2025

5.0

It means a lot to have a doctor who takes the time to listen and explain everything so carefully.

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October 20, 2025

5.0

He is a wonder doctor. He treats me very well.

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October 20, 2025

5.0

He asked open ended questions and waited for my answers. He actually listened to my heart and lungs. He had a plan that made sense and he was not condescending.

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October 17, 2025

5.0

Prompt and professional service

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October 16, 2025

5.0

Use thorough and approachable. And knows my case well. He is Patient and listens and explains things well.

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October 01, 2025

5.0

Personable and caring!

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September 28, 2025

5.0

Dr. Nierzwicki takes his time with you and is very thorough. He really seems to care about your well being.

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September 24, 2025

5.0

Dr Nierzwicki did an excellent job explaining the medication to reduce my LDL.

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September 23, 2025

5.0

Took his time & answered all my concerns

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September 21, 2025

5.0

He's an amazing cardiologist! Welcomes all of his patients with positivity and professionalism. He's extremely easy to talk to about any concerns that you may have. He's always prompt! I love that! He always make sure that his patients have a very clear understanding of what's going on with their heart and health. This is my first time ever needing to see a cardiologist but I couldn't have gotten a better person. He's patient and very helpful and he's truly concerned about the wellness of his patients.

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September 17, 2025

5.0

Dr Nierzwicki listened to my concerns and happily elaborated on answers, if asked. After leaving my appointment i felt positive and not worried about my situation.

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September 16, 2025

5.0

Dr. Nierzwicki is attentive, informative and genuinely cares! I have utmost confidence in him and his team.

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September 16, 2025

5.0

DR Nierzwicki takes time and listens. He looks me in the eye and I know he is focused on me.

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September 11, 2025

5.0

He is a doctor I completely trust, he practices what he preaches, he is in excellent shape because he knows the importance of staying fit, he absolutely leads by example. Doctor Nierzwicki is easy to communicate with, he is very clear regarding explanations and instructions, which he provides me. I firmly believe he has my best interests in mind during my visits.

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September 11, 2025

5.0

He takes the time to talk with you and address any concerns you have.

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September 10, 2025

5.0

Very thorough compassionate doctor. - knows how to listen and explain

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September 08, 2025

5.0

Dr Nierzwicki listens to my comments and concerns. He answers my questions with explanations. He gives me full attention an doesn't rush me.

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September 05, 2025

5.0

Dr, Nierzwicki was well prepared before meeting me. He had looked over my records thoroughly. I was impressed with his knowledge when he answered all my questions. I didn't feel rushed, I felt listened to. I was impressed with his knowledge. I felt relieved when I left that I had found a doctor that I trust!

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September 02, 2025

5.0

good eye contact, answered all my questions clearly, explained my condition clearly

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August 27, 2025

5.0

Dr. Nierzwicki is very knoligble Ann Takes his time and answers your Questions and your concerns

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August 17, 2025

5.0

Very pleasant and he listens to you. He explains and answers all of your questions. I never feel rushed.

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August 15, 2025

5.0

Very pleasant, explained everything & answered all our questions.

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August 11, 2025

5.0

I have the very best doctors

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July 30, 2025

5.0

He's super nice. Very caring. Takes his time. Explains things and answers questions. Didn't feel rushed. He's was very patient.

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July 29, 2025

5.0

He takes time to explain treatment and I was never rushed.

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July 24, 2025

5.0

Dr. Nierzwicki provided good care.

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July 15, 2025

5.0

Very professional and friendly

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July 06, 2025

5.0

Excellent in all areas

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July 03, 2025

5.0

Didn't make me feel rushed. Brainstormed and answered all my questions.

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July 03, 2025

5.0

See above; I have recommended my husband and best friend.

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July 02, 2025

5.0

Expertise and good advice

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July 02, 2025

5.0

He has always given me very good attention.

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June 27, 2025

5.0

Dr was present, answered my questions and offered options

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June 18, 2025

5.0

Very pleasant and knowledgeable

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June 17, 2025

5.0

Knowledgeable and professional

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June 16, 2025

5.0

Dr. Nierzwicki was recommended to me. He listened to my concerns and addressed them. He had a plan for treatment and set a date for follow up.

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June 15, 2025

5.0

Very easy to talk with

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June 14, 2025

5.0

Very good doctor who takes the time to listen and hear my concerns and questions, and answers them in an easily understood manner.

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June 12, 2025

5.0

He would give excellent care to his patients.

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June 02, 2025

5.0

He listens and he explains

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June 01, 2025

5.0

Professional, thorough, helpful

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May 29, 2025

5.0

I have recommended Dr. Nierzwicki to many friends. They do see him.

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May 25, 2025

5.0

Showed my need for attention to heart issues.

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May 22, 2025

5.0

Explains well Good diagnostician

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May 20, 2025

5.0

He's a great doctor.

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May 19, 2025

5.0

Dr Nierzwicki listens to my answers and comments and addresses my questions with complete and easy to understand answers and terminology.

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May 19, 2025

5.0

He is patient, listens to others, and he does not routinely prescribe heart meds simply because he is a cardiologist. He kept me off meds because he thought I did not need them.

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May 16, 2025

5.0

He is very professional . He addressed all of my concerns and has outlined a plan for procedures to be implemented.

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May 15, 2025

5.0

Very professional and very nice

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May 14, 2025

5.0

Dr Nierzwicki is a good listener and made me feel very comfortable. He answered several questions that I had and I feel well cared for.

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May 12, 2025

5.0

Extremely compassionate

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Disclosures

External Professional Relationships

Pharmaceutical, device, and biotechnology companies frequently collaborate with basic scientists and physicians within an academic medical center to help advance science and improve patient care. These relationships are important in achieving scientific breakthroughs and in establishing the effectiveness and safety of promising new therapies. In order to assure objectivity in clinical research and patient care, the Northwestern University Feinberg School of Medicine (Feinberg), Northwestern Memorial HealthCare, Children's Hospital of Chicago Medical Center, and the Shirley Ryan AbilityLab have adopted integrity policies that require research and clinical faculty (in full-time, part-time, and unpaid/voluntary categories) to report compensated and uncompensated external industry relationships. Patients are encouraged to discuss these disclosures with their physician as well as to inquire as to how these relationships are overseen by Feinberg. To learn more about our Disclosure and Professional Integrity Policy, and the conflict of interest policies of our joint affiliate survey partners, please go to our Office for Regulatory Affairs Policies page.

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