Respiratory Virus and Vaccine Information

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Adult Medicine
Cholesterol Management
Chronic Disease Management
Comprehensive Primary Care
Diabetes
Heart Disease Prevention
Hypertension
Preventative Care

Education

Medical Education:: MD, Harvard Medical School - 1998
Residency:: Mass General Brigham - 2001

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Professor, Feinberg School of Medicine

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Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
On Medical Staff At:: Northwestern Memorial 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

5.0

5.0

413 Ratings

Reviews from Patients

37 Reviews

Reviews from Patients

37 Reviews

February 25, 2026

5.0

Personable, knowledgeable, friendly, empathetic.

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February 24, 2026

5.0

He's the best

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February 17, 2026

5.0

10 plus Dr. Persell is brilliant, kind, caring, professional, includes the patient in discussions about their care. He is also efficient.

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February 15, 2026

5.0

Dr persell is the best

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February 11, 2026

5.0

Dr. Persell is the best

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February 08, 2026

5.0

Dr Persell

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January 27, 2026

5.0

He is absolutely awesome. Dr. Persell is quite simply the best physician I have ever encountered, setting the platinum standard for compassionate, holistic care.

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January 25, 2026

5.0

Dr. Persell is very professional and goes to great lengths to make certain he has dealt with all my issues.

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January 17, 2026

5.0

Dr Persell always listens even when I don't agree with him.

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December 03, 2025

5.0

Comment above He's amazing!

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November 21, 2025

5.0

Thoughtful, thorough, supportive care. Listens to concerns and questions. Explains things clearly. Always prepared. Proactive. Friendly and professional.

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November 18, 2025

5.0

Concerned about my care. Friendly and helpful. An amazing doctor

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November 14, 2025

5.0

Competent friendly

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November 12, 2025

5.0

A very compassionate individual.

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November 01, 2025

5.0

Dr. Persell always takes his time to empathize with my health concerns. He is kind, intelligent, asks questions, listens with care, respect, and patience. I don't know what I would do without him, especially when I was in dire need of help and care. Plus, he is one of the best doctors I have ever known. He over extends his time to not only his patience, but research and education. He is an invaluable resource for Northwestern, and I'm so happy to call him my doctor. Thank you so much for seeing me as my concerns were addressed and I feel relieved, and entrust my health and future well-being in his care.

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October 24, 2025

5.0

Dr. Persell is caring and great about answering questions and explaining concepts.

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October 23, 2025

5.0

Dr Persell is an excellent doctor and he has been good care with my family members over 20 years

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September 26, 2025

5.0

Great doctor

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September 03, 2025

5.0

He listens and addresses each of my issues. He is courteous and easy to talk to. His ask about. Y mental and physical health.

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September 02, 2025

5.0

Very thorough and detailed oriented. Excellent bedside manner.

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August 27, 2025

5.0

Dr. Persell listens and cares for his patients.

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August 27, 2025

5.0

Seems to know his stuff.

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August 19, 2025

5.0

Feels like a concerned friend

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August 12, 2025

5.0

Brilliance, efficiency, kind, personable, involved me in decisions

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July 23, 2025

5.0

Excellent person and doctor

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July 16, 2025

5.0

Good listener. Good communicator

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July 07, 2025

5.0

He does very good observations of what is needed for resolving your medical issues.

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June 29, 2025

5.0

Caring MD. Explains things well.

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June 24, 2025

5.0

He is thorough with exceptional medical knowledge. In areas other than his expertise he listens, shares his knowledge and offers to make a referral if needed.

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June 11, 2025

5.0

Excellent physician. My visit didn't feel rushed. He addressed all of my concerns.

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June 10, 2025

5.0

Dr Persell is a highly professional stellar physician in the medical field and a kind, caring and intellectual person.

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June 10, 2025

5.0

He pays attention and acts on my behalf.

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June 08, 2025

5.0

Explains well; takes interest in patient.

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May 20, 2025

5.0

He take time to make certain I comprehend fully.

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May 18, 2025

5.0

spent adequate time to explain and diagnose health issues and treatment options

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May 11, 2025

5.0

Dr. Persell is approachable and thorough. I was glad to be able to my questions answered. He also stands up for good science.

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May 07, 2025

5.0

My internist these past fifteen years. Like and trust one another.

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Disclosures

Industry Relationships

Consulting

Faculty member and/or their immediate family have engaged in activities such as speaking, advising, consulting, or providing educational programs for the following companies or other entities

American Board of Internal Medicine (ABIM)
National Institutes of Health (NIH) - Center for Scientific Review

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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