Diane C. Nielsen, MD

Diane C. Nielsen, MD

5.0 
1080 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Pediatrics

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Education

Medical Education:
MD, Southern Illinois University School of Medicine - 1989
Residency:
University of Texas Medical Branch Hospitals - 1992

Languages Spoken

  • Spanish

Board Certifications

  • American Board of Pediatrics - Pediatrics (Certified)

Practice Groups and Affiliations

Medical Group:
Northwestern Medicine Regional Medical Group
Alignment Category:
Northwestern Medicine Physician Network
On Medical Staff At:
Delnor Hospital

Ratings and Reviews

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Overall Rating

5.0
5.0 

1080 Ratings

Reviews from Patients

59 Reviews

Reviews from Patients

59 Reviews

February 27, 2026

5.0

We have seen Dr Nielsen for years. She is always very thorough, and genuinely seems concerned for our girls. She is very informative. Our girls really like her and we feel well cared for. I know that in 1-2 months she will send a message asking how things are going if we required medication or a referral to someone. She is amazing.

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February 18, 2026

5.0

Amazing care consistently!

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February 10, 2026

5.0

She is amazing! So kind and thorough.

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February 03, 2026

5.0

She is always through and gives my kids the best possible care

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February 01, 2026

5.0

Compassionate, thorough, knowledgeable

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January 19, 2026

5.0

So friendly and easy to talk to. My kids love her and feel safe with her and trust her

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January 15, 2026

5.0

Dr. Nielsen is great. She is kind, compassionate, and involves the kids (when appropriate) in their care. She spends adequate time with the patients and answers all questions.

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January 08, 2026

5.0

She's knowledgeable and kind and truly cares for our kids - that means a lot!

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January 08, 2026

5.0

Amazing doc, cannot say enough great things!!

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January 05, 2026

5.0

She takes her time never makes you feel rushed . Always listens.

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January 05, 2026

5.0

Cares for patient, welcoming

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December 29, 2025

5.0

She's incredible. Honest, straightforward, and efficient, but so kind and thorough at the same time. She takes things seriously without instilling any fear or pressure, and I truly feel like I can ask "what do you suggest?", and actually feel like I can trust her answer to be honest and medically sound, without feeling like there's any type of outside pressure. She's also so kind and patient with all of my children when they need to attend their siblings' appointments. She cares about us, as a family, and that's a rare find these days.

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December 03, 2025

5.0

She truly cares about my children and that means so much!

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November 25, 2025

5.0

Great with all ages and very thorough!

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November 21, 2025

5.0

She's always quick to help you and is very thorough in her examination

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November 20, 2025

5.0

Dr Nielsen is wonderful. Our girls have been seeing her for years and we couldn't be happier with her care. She is very thorough and explains everything in detail. She is very kind and is genuinely concerned with their well being.

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November 17, 2025

5.0

She really takes her time and listens and helps to find solutions and answers

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November 15, 2025

5.0

She is amazing. We always feel heard, truly cared for, and that we are receiving the best care. We've recommended her to several of our friends.

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November 10, 2025

5.0

She truly cares about my children! It's hard to find doctors who actually care about each kid! We are thankful for the way she cares for our kids!

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November 03, 2025

5.0

She is wonderful and genuinely cares for our kids and our well being!

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October 28, 2025

5.0

She is always wonderful, warm, and great with my daughter.

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October 17, 2025

5.0

We love her. She is so calm and truly listens to what you are saying. She is so gentle and careful with our baby which we really appreciate that.

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October 02, 2025

5.0

Caring, compassionate and really listens.

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October 02, 2025

5.0

Dr.Nielsen has been my doctor for years.

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September 08, 2025

5.0

Diane C Nielsen, is one of the best pediatricians my children have ever had.

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September 04, 2025

5.0

She knows my kids and what our expectations are. The visits are thorough and detailed

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September 03, 2025

5.0

Dr. Neilsen has been [Patient's Name] doctor since he was born. She is wonderful! She is open to our ideas, listens to her patients and their parents and is always up on the latest medicine. She called after the appointment to follow up on an item rather than just sending a my chart message. We appreciate her immensely!

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August 30, 2025

5.0

She is friendly. My boys just love how she talks and explains everything to them.

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August 29, 2025

5.0

She is amazing! And experienced!

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August 24, 2025

5.0

She was amazing very reassuring and thorough

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August 23, 2025

5.0

She is FANTASTIC!!

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August 22, 2025

5.0

The kids are comfortable with her

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August 21, 2025

5.0

We love Dr. Nielsen. She is experienced, so kind, and either has answers or knows where to direct us for further testing.

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August 14, 2025

5.0

Dr. Nielsen's bedside manner is the best. She takes her time for accurate diagnosis and explains diagnoses well. She takes her time and doesn't make you feel rushed.

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August 13, 2025

5.0

We love her kindness

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August 13, 2025

5.0

Dr. Nielsen is always careful to listen and make sure we don't have any question. She is knowledgeable and caring. We couldn't ask for a better doctor.

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August 12, 2025

5.0

She is great with my kids and they feel comfortable with her. She is thorough and gives sound advice

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August 11, 2025

5.0

I respect and trust Dr. Nielsen for excellent pediatric care for my children. She is very knowledgeable and reasonable. I like her nurse Debbie as well.

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July 27, 2025

5.0

Dr. Nielsen is has the best care and concern for her patients!

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July 27, 2025

5.0

Dr. Nielsen was extremely thorough and determined to get to the bottom of what I was experiencing. She was patient, kind, and very understanding with my concerns. I would recommend her in a heartbeat to anyone wanting a caring and supportive Dr.

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July 14, 2025

5.0

Really nice and welcoming. Knows what's personally best when talking about health plans like asthma.

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July 11, 2025

5.0

Dr. Nielsen is so helpful and always takes time to go over our concerns.

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July 09, 2025

5.0

She's amazing! Always takes her time with our kids. Make sure we understand everything that she's doing and why. She always incorporates new research into her care.

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July 03, 2025

5.0

Cares about her patients. Very thorough and takes time to answer all questions and address all concerns. My child is usually very apprehensive about going to the doctor, but Dr. Nielsen's kind and gentle manner along with building rapport with her patients makes my child feel at ease and actually enjoy coming in for checkups.

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June 28, 2025

5.0

She check my daughter in detail, also communication is amazing, best doc. Nurses are also friendly and helpful

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June 24, 2025

5.0

Dr Nielsen is very informative, thorough and kind. Our girls really like her.

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June 24, 2025

5.0

Dr. Nielsen is amazing. Our girls love her. She is thorough and very informative.

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June 24, 2025

4.0

Quick and to the point. Making sure he is where he needs to be and will answer any questions

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June 19, 2025

5.0

She never makes us feel like our questions and concerns are invalid. Always warm and welcoming

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June 16, 2025

5.0

Dr Nielsen is a wonderful physician. Kind, gentle, experienced. An asset to NM. Her nurses and MAs are very kind as well.

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June 16, 2025

5.0

Dr. Nielsen is so kind, patient, and gentle with our autistic son

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June 05, 2025

5.0

Dr Nielsen is extremely knowledgeable, thorough and patient

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June 03, 2025

5.0

Seems like she actually listens to and cares about her patients

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May 21, 2025

5.0

Dr. Nielsen is an excellent provider. She takes adequate time to have a quality discussion, assess and give meaningful advice to her patients!

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May 19, 2025

5.0

She is very smart and very thorough. She listens and does not rush you.

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May 07, 2025

5.0

She is wonderful and so helpful and kind and takes the time with her patients.

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May 07, 2025

5.0

Dr. Nielsen is the best. She genuinely cares about her patients and their complete well-being. My kids have been seeing her since they were toddlers (now teens) and I wouldn't trust anyone else with their care.

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May 07, 2025

5.0

Dr. Nielsen was very friendly and thorough and answered all our questions.

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May 06, 2025

5.0

Always kind and understanding. A good listener and a partner in my children's health. Informative and helpful.

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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.