Marie T. O'Connor Parker, MD

4.9

76 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Immediate Care

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Education

Medical Education:: MD, Loyola University Stritch School of Medicine - 1999
Residency:: Cook County Health and Hospitals System - 2004

Board Certifications

American Board of Emergency Medicine - Emergency Medicine (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network

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

76 Ratings

Reviews from Patients

18 Reviews

Reviews from Patients

18 Reviews

February 27, 2026

5.0

Felt like she cared about me and what was going on with my health

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February 21, 2026

5.0

Dr. O'Connor was very attentive and thorough. I appreciated the attention given to what I had been going through for weeks and the explanations of what my symptoms might mean. And I'm getting better so I give her an 11.

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February 19, 2026

5.0

Great listener, thorough and patient.

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February 18, 2026

5.0

Doctor was supportive and kind.

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February 18, 2026

5.0

Compassionate thorough and appropriate in recommendations for treatment

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February 17, 2026

5.0

very attentive and instilled confidence in me

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February 14, 2026

5.0

Very nice.

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February 11, 2026

5.0

I have total confidence they are giving me accurate information and there education and skills are up for the job!

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February 11, 2026

5.0

Very compassionate and informative and reassuring.

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February 03, 2026

5.0

Very nice & informative

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February 03, 2026

5.0

Kind, direct, helpful

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February 03, 2026

5.0

Excellent instructions and caring doctor. Felt like I had the very best care.

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January 28, 2026

5.0

As stated above - she was great! From the patient's perspective she was caring and professional.

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January 26, 2026

5.0

Similar to the above, I was looking to see if Dr. O'Connor is accepting new patients.

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January 26, 2026

5.0

She was attentive and caring. Also, very informative to what might be the cause of my ailment. Everything was explained in detail.

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January 21, 2026

5.0

Helpful and straightforward.

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January 03, 2026

5.0

listened carefully and explained my condition and treatment thoroughly

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December 09, 2025

5.0

She was so nice and took her time to talk to my son and make sure he was ok before we left! She was kind, patient while also being quick and efficient!

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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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