Mary A. Mahieu, MD

Mary A. Mahieu, MD

5.0 
1110 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Rheumatology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:
MD, Loyola University Stritch School of Medicine - 2010
Residency:
McGaw Medical Center of Northwestern University - 2013
Fellowships:
McGaw Medical Center of Northwestern University - 2015
McGaw Medical Center of Northwestern University - 2016

Board Certifications

  • American Board of Internal Medicine - Internal Medicine (Certified)
  • American Board of Internal Medicine/Rheumatology - Rheumatology (Certified)

Faculty Profile

Assistant Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

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

Ratings and Reviews

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Overall Rating

5.0
5.0 

1110 Ratings

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Reviews from Patients

52 Reviews

Reviews from Patients

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52 Reviews

February 26, 2026

5.0

I can't imagine a more responsive, attentive, and knowledgeable physician.

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February 25, 2026

5.0

Dr. Mahieu is thorough, professional, knowledgeable and she's even kind and personable.

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February 13, 2026

5.0

She is easy to talk to, answers all my questions and always has suggestions for me. I feel very comfortable with her

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February 12, 2026

5.0

Knowledgeable, collaborative, caring doctor

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February 11, 2026

5.0

Very knowledgeable doctor

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February 04, 2026

5.0

Expert, clinically astute, performs full examination and assessment herself at each visit. Knowledge and experience about the diseases and about my specific issues. Clearly outstanding physician who knows how to think, consider options, communicates and make decisions.

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January 29, 2026

5.0

Warm and friendly personality Listens to my concerns regarding treatment Very through at my appointments Explains options for treatment very well

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January 29, 2026

5.0

The very best for Rheumatology .

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January 28, 2026

5.0

Caring and attentive to health and potential triggers for illness.

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January 20, 2026

5.0

She understands that many people my age want to continue being as active as possible while minimizing medication. She is very good at explaining and also referring to physical therapy of another resource.

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January 10, 2026

5.0

She has a really good bedside manner

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January 07, 2026

5.0

I've been a patient of Dr. Mary Mahieu since 2020 after my prior doctor stopped seeing patients. I'm happy to recommend Dr. Mahieu to my friends and family, she's very thorough and takes great care of my health.

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December 23, 2025

5.0

she is always very attentive and never rushes through a visit.

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December 18, 2025

5.0

She is prepared when she enters the room. She asks great questions and then listens to responses. She invites you to participate in decisions. All and all she is an extremely nice person and doctor.

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December 17, 2025

5.0

Amazing bedside manner. So nice and caring. I'm glad I found her

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December 11, 2025

5.0

Dr. Mahieu responds quickly, thoughtfully, and thoroughly. I always feel a though she considers my health as her top priority.

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December 09, 2025

5.0

Attentive to my needs

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December 08, 2025

5.0

She is dedicated to meet the needs of her patients.

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November 26, 2025

5.0

Knowledgeable and helpful.

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November 11, 2025

5.0

She goes over everything in detail & takes time to explain

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November 07, 2025

5.0

Dr. Mary Alison Mahieu is Courteous, Professional, Knowledgeable and Passionate about her work. She's simply the best.

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November 05, 2025

5.0

Dr Mahieu spent enough time to see me and answer my questions and concerns.

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October 27, 2025

5.0

I cannot give Dr. Mahieu enough points for all her help in managing my autoimmune conditions. Very attentive and forward looking which I appreciate.

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October 23, 2025

5.0

A Doctors Rheumatologist.

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October 21, 2025

5.0

She listens. Is very thorough. Appears to actually remember who I am & my issues with clarity.

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October 14, 2025

5.0

She takes her time with you and explains everything. I look forward to seeing her!

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October 09, 2025

5.0

She's wonderful.

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September 25, 2025

5.0

Attentive. Never feel like I'm being rushed.

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September 16, 2025

5.0

Excellent and attentive care.

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September 11, 2025

5.0

Dr. Mahieu is the best rheumatologist I have encountered.

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September 10, 2025

5.0

Bedside manner

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August 14, 2025

5.0

I have the ultimate trust in her treatment. She always involves me in decisions regarding my care. She is personable and truly cares about her patients.

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August 13, 2025

5.0

Dr. Mahieu is always so understanding and supportive to my care. I appreciate all the work she does to ensure my health is good

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August 11, 2025

5.0

Dr Mahieu did a thorough examination asked several question. One of the best doctors I have ever had

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August 07, 2025

5.0

She is always nice and will listen to you. Always love that about a doctor.

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August 04, 2025

5.0

Dr. Mahieu is terrific.

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July 24, 2025

5.0

Dr Mahieu is kind, patient, and thorough.

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July 16, 2025

5.0

Dr. Mahieu is a thoughtful and caring doctor.

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July 10, 2025

5.0

All of the above plus she's always looking for a way to make me feel better

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June 25, 2025

5.0

Dr Mahieu is extremely attentive, professional and cares about her patients. Give her and her department a raise

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June 21, 2025

5.0

Confidence in her care

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June 19, 2025

5.0

Dr. Mahieu is competent, patient, caring, and kind. I appreciate how she always listens attentively.

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June 11, 2025

5.0

Dr. Mahieu is a very capable and caring doctor. She does an excellent job of monitoring my lupus symptoms and keeping me on the right track.

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June 07, 2025

5.0

Dr. Mahieu is wonderful! She listens and actually hears what you have to say. She's very thoughtful in her treatment options. She makes you feel like you are her only patient. Her follow up communication is impeccable. She is a great diagnostician. I can't recommend her enough.

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June 04, 2025

5.0

Thorough, patience, ability to explain in language that I can uderstand

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June 04, 2025

5.0

Dr Mahieu is an expert who knows these complex diseases, the science and the treatments, and she also really knows her patients. This is crucial for the highest quality patient care.

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May 28, 2025

5.0

I love my doctor and the care I get at Northwestern Memorial Rheumatology. Dr. Mahieu is wonderful.

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May 20, 2025

5.0

She's very attentive and gets back to me quickly.

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May 14, 2025

5.0

Super kind and insightful. Always helps to provide the best care I could ask for.

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May 13, 2025

5.0

Good dr

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May 08, 2025

5.0

Excellent service

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May 01, 2025

5.0

Expertise, efficiency, promptness, very friendly

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Disclosures

Industry Relationships

Ownership or Investment Interest

Faculty member and/or their immediate family have an ownership or investment interest in the following companies

  • Abbott Laboratories, Inc.
  • AbbVie, Inc.
  • Baxter International, Inc.
  • Johnson & Johnson
  • Pfizer, Inc.

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.

View More Disclosures