Thomas A. Dennison, MD

4.9 
410 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Psychiatry

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Education

Medical Education:
MD, University of Illinois at Chicago College of Medicine - 1981
Residency:
Southern Illinois University - 1985

Board Certifications

  • American Board of Psychiatry and Neurology - Psychiatry (Certified)

Practice Groups and Affiliations

Medical Group:
Northwestern Medicine Regional Medical Group
On Medical Staff At:
Kishwaukee Hospital

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 

410 Ratings

Reviews from Patients

36 Reviews

Reviews from Patients

36 Reviews

February 26, 2026

5.0

Dr. Dennison is wonderful to work with and he is caring.

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February 24, 2026

5.0

Dr Dennison is a great Dr

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February 21, 2026

5.0

I have been with Dr. Dennison since I was in college, he is a good man. You are lucky to have him.

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February 06, 2026

5.0

He listens and gives you medicine that you Need.

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January 24, 2026

5.0

Knowledgeable and thorough and professional.

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January 21, 2026

5.0

Listens to the patient

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January 10, 2026

5.0

He has been there to guide me through some of my worst times in life.

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January 07, 2026

5.0

He takes the time to listen to me.

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December 11, 2025

5.0

He is intelligent and sensitive; he is the best kind of doctor.

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December 05, 2025

5.0

Very good doctor. Listens to me and asks me questions about my well being.

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December 02, 2025

5.0

He is very nice and pleasant and makes me feel comfortable

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November 29, 2025

5.0

Dr. Dennison is very approachable and professional. He always makes me a part of my healthcare decisions.

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November 25, 2025

5.0

He's great! He listens, he answers all my questions with thought and compassion.

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November 24, 2025

5.0

I have been with Dr. Dennison for 25 years. He understood I needed.

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November 19, 2025

5.0

He his knowledgeable and caring and involves me in decisions about my care.

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November 12, 2025

5.0

He is a very kind and helpful doctor. One of the best!!!

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November 12, 2025

5.0

Caring and knowledgeable

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October 08, 2025

5.0

So smart and kind

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September 02, 2025

5.0

He is professional yet very kind. You know Dr. Dennison really care about helping you and you arent just another face....in his busy day.

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August 31, 2025

5.0

Dr. Denison is excellent!

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August 28, 2025

5.0

I have been his patient since 1995. He is intuitive and responsible. A genuinely good doctor and human.

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August 20, 2025

5.0

Wonderful

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August 17, 2025

5.0

He is Very Patient with his patients. He is Very Understanding and Thoroughly Educated for his patients care.

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August 12, 2025

5.0

Dr. Dennison has always been good to me and treated me with respect and care

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August 12, 2025

5.0

Bery good.

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July 20, 2025

5.0

He is the best

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July 18, 2025

5.0

Compassionate

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July 15, 2025

5.0

Very good at what he does, listens and gives good feedback

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July 15, 2025

5.0

he's a great psychiatrist. I would highly recommend him to anyone that would be in need of his services.

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July 09, 2025

5.0

He asks probing questions and does it in a manner which is respectful and can lead to more questions to diagnose issues.

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June 13, 2025

5.0

Wonderful Dr all the way around

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June 11, 2025

5.0

He is patient and good listener.

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May 26, 2025

5.0

Quality

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May 23, 2025

5.0

Dr Dennison is a good listener and very personable.

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May 21, 2025

5.0

Dr. Dennison has been treating me for 2 decades. I feel at ease with him.

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May 02, 2025

5.0

Listened to me. Suggested new medication

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Disclosures

Thomas A. Dennison, MD reported no external professional relationships for calendar year 2025.

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.