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John J. Friedewald, MD

5.0

204 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Nephrology

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HealthBeat

A Nephrologist Donates a Kidney and Starts a Domino Effect

By donating her kidney to a stranger, one Northwestern Medicine physician starts a chain reaction and saves two lives.

What Does it Take to Be a Living Kidney Donor?

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:: MD, Columbia University Vagelos College of Physicians and Surgeons - 1998
Residency:: Johns Hopkins University - 2001
Fellowships:: Johns Hopkins University - 2003

Board Certifications

American Board of Internal Medicine - Internal Medicine (Certified)
American Board of Internal Medicine/Nephrology - Nephrology (Certified)

Faculty Profile

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

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

204 Ratings

Reviews from Patients

19 Reviews

Reviews from Patients

19 Reviews

January 19, 2026

5.0

very interested and very caring

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January 12, 2026

5.0

Dr. Friedewald always makes me feel like I am a friend, not just a patient. He is very kind and thoroughly explains everything about my treatment and makes sure I am on board with it.

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December 22, 2025

5.0

He has guided me through the transplant process for the past 19 years.

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October 30, 2025

5.0

doctor and Person. He is kind and patient with me, answering all of my questions, alleviating any fears and spending an apple amount of time with me at my appointment. He is incredibly knowledgeable and always has a positive and kind manner I'm so grateful to him and fortunate to be under his care!

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October 30, 2025

4.0

He is good

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October 27, 2025

5.0

The best best.

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October 16, 2025

5.0

Many years of superior care.

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September 18, 2025

5.0

Very special person - friendly, open, inspiring, clearly at the top of his game!

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September 13, 2025

5.0

Dr. Friedewald has a very good character and personality. You can tell that is very knowledgeable in his field..

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September 08, 2025

5.0

The best transplant nephrologist.

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August 18, 2025

5.0

Professional, knowledgeable and personable

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August 18, 2025

5.0

Great Dr.

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August 03, 2025

5.0

He's a great doctor who follows up regularly. He's tops of his profession.

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July 12, 2025

5.0

NWH so far has shown me compassion and the ability to extend my life.

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July 09, 2025

5.0

He was informative and friendly

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June 26, 2025

5.0

He is an excellent Healthcare provider and cares a great deal about his patients. He is the best.

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June 12, 2025

5.0

Great doctor and listens to all your questions and concerns.

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May 29, 2025

5.0

Excellent, professional, and sincerely caring doctor.

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May 23, 2025

5.0

Loved him and I felt like he cared and he was straight forward and honest

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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

Transplant Genomics (a Eurofins company)

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

Mallinckrodt LLC
Medical University of South Carolina
Sanofi
Transplant Genomics (a Eurofins company)
UpToDate, Inc.

Royalties

Faculty member and/or their immediate family have the right to receive payments or may receive future financial benefits for inventions or discoveries related to the following companies or other entities

Transplant Genomics (a Eurofins company)

Faculty member received compensation for medical record consultation and/or expert witness testimony.

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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HealthBeat

A Nephrologist Donates a Kidney and Starts a Domino Effect

By donating her kidney to a stranger, one Northwestern Medicine physician starts a chain reaction and saves two lives.

What Does it Take to Be a Living Kidney Donor?

Are you eligible?

More HealthBeat Articles