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Joy Mattson Petrusha, RD

Registered Dietitian

4.8

220 ratings Read Reviews

Northwestern Medicine Regional Medical Group

Primary Specialty

Diabetes Education

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Registered Dietitian

Education

Professional Education:: BS, University of Illinois at Urbana-Champaign College of Agricultural, Consumer & Environmental Science - 1996

Certifications and Licensures

Certification Board for Diabetes Care and Education - Diabetes Care and Education Specialist (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medicine Regional Medical Group

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

4.8

4.8

220 Ratings

Reviews from Patients

18 Reviews

Reviews from Patients

18 Reviews

February 19, 2026

5.0

She helped me to really understand how I'm supposed to eat now that I'm diabetic. Answered all my questions. Made me feel very comfortable. I'm not so overwhelmed right now and hopefully on a good path forward.

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January 28, 2026

5.0

Very pleasant, knowledgeable. In caring about your health.

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January 01, 2026

5.0

I had a previous appt in May with Joyce. She was helpful and made sure to explain everything to me and provided a menu that was very helpful.

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December 31, 2025

5.0

Took the time to listen. Explained everything thoroughly.

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December 28, 2025

5.0

Very concerned and gave valuable information

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December 03, 2025

5.0

Already recommended her

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November 21, 2025

5.0

It was my first time meeting her I was hesitant to speak with a dietitian she put me at ease we were able to discuss so ways to change diet and make improvements

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November 20, 2025

5.0

Accepting and non confrontational

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October 30, 2025

5.0

She was knowledgeable on my needs and care

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October 16, 2025

5.0

She answered my and my daughters questions and gave me a file of reading material

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September 22, 2025

5.0

She's very helpful and not judgemental

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September 17, 2025

5.0

Very Personable and knowledgeable, very nice to work with.

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September 02, 2025

5.0

Same as above. If I know if anyone, I would recommend her!

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August 28, 2025

5.0

She really worked with me.

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July 29, 2025

5.0

She was clear and knowledgeable on the subject

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July 23, 2025

5.0

Good listener and didn't feel rush.

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July 02, 2025

5.0

Was very helpful and answered all my questions.

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May 23, 2025

5.0

Very friendly and professional, while very knowledgeable in her field.

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Disclosures

Joy Mattson Petrusha, RD 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.

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