John D. Ayers, MD

4.9

1747 ratings Read Reviews

Northwestern Medical Group

Primary Specialty

Hematology and Medical Oncology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:: MD, University of Illinois at Chicago College of Medicine - 1995
Internship:: St Elizabeths Medical Center - 1996
Residency:: Boston University Medical Center - 1997

St Elizabeths Medical Center - 1999
Fellowships:: University of Hawaii - 2000

Loyola University Medical Center - 2003

Board Certifications

American Board of Internal Medicine/Hematology - Hematology (Certified)
American Board of Internal Medicine/Medical Oncology - Medical Oncology (Certified)

Practice Groups and Affiliations

Medical Group:: Northwestern Medical Group
Alignment Category:: Northwestern Medicine Physician Network
On Medical Staff At:: Central DuPage 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

1747 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

February 26, 2026

5.0

Excellent Doctor

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February 23, 2026

5.0

He answered any questions I had and was always very professional

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February 21, 2026

5.0

Completely satisfied

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February 19, 2026

5.0

Always very helpful and informative when I was diagnosed with breast cancer.

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February 18, 2026

5.0

Very personable and patient otiented

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February 18, 2026

5.0

Caring, knowledgeable and professional.

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February 17, 2026

5.0

He followed my case closely and followed through with every test.

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February 17, 2026

5.0

He listens and replies with understandable answers. He doesn't rush.

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February 10, 2026

5.0

Leaving practice so higher score inappropriate

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February 04, 2026

5.0

I like Dr. Ayers and am sorry to see him leave to a new job with Northwestern. He is very knowledgeable, and he answered all my questions clearly. He has a good bedside manner and is very caring.

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February 03, 2026

5.0

Empathetic. Friendly. Appt was at the time scheduled - no waiting.

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January 29, 2026

5.0

Excellent Doctor as I am still alive, I have metastatic liver cancer and the treatment is working.

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January 25, 2026

5.0

He is no nonsense. He explains everything and makes suggestions for improvements in my general health.

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January 22, 2026

5.0

In the last eight years, I've been seeing Dr. Ayers. He has made treatment and healing mentally easy for me to understand and accept. He's very honest and upfront without being rude or mean, and I appreciate his ability to be straightforward.

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January 21, 2026

5.0

Dr Ayers is excellent! So glad we had him as a doctor. Explains things so we understand.

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January 18, 2026

5.0

He discusses all your medical diagnosis with you gives you his recommendations and listens to your understandings.

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January 17, 2026

5.0

Dr Ayers explains everything in detail

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January 16, 2026

5.0

He's detailed about your care plan.

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January 13, 2026

5.0

He is very personable. Spent time with me. Very thorough explaining current condition and future plans.

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January 12, 2026

5.0

Always professional and provides excellent care and information.

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January 04, 2026

5.0

He makes me feel so good each time I see him.

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January 04, 2026

5.0

Dr Ayers explains everything so that we can understand and explains possible treatment options.

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December 24, 2025

5.0

Dr Ayers is very thorough and spends time with me. Does not rush.

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December 22, 2025

5.0

Extremely knowledgeable and caring. My case is fairly complex and he manages well with explanations

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December 18, 2025

5.0

Dr Ayers always takes the time to listen to me and look for reasons I am feeling the way I do. He is careful with my labs and blood work and really is very knowledgeable about treatments available and ones on the horizon.

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December 18, 2025

5.0

Very kind, honest, direct, caring

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December 18, 2025

5.0

He's very friendly; easy to talk to. Dr. Ayers is an excellent listener and welcomes questions. He takes time to explain information. I've recommended him to friends and family.

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December 17, 2025

5.0

He's knowledgeable, calm and a good communicator

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December 15, 2025

5.0

Incredible!!!!

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December 09, 2025

5.0

Dr Ayers is just too good to be true! He is so professional and he really knows his stuff! Over the many years that I have been going to him he is always kind and very helpful! #1 Doctor in my mind

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December 09, 2025

5.0

He gave helpful practical advice and was precise in explaining next steps.

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December 08, 2025

5.0

Dr. Ayers is a great doctor who has been my oncologist for 12 years. I was saddened to hear about that he is leaving the clinic and will only be working at the hospital. He's knowledgeable, kind, and very caring. He takes his time and always asks if I have any questions and concerns.

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December 04, 2025

5.0

Very good doctor. He has given me excellent care.

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November 29, 2025

5.0

Great care

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November 25, 2025

5.0

He is kind caring professional and explains things so you understand 11 years I've been seeing him

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November 23, 2025

5.0

Takes the time to explain everything!

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November 20, 2025

5.0

Dr Ayers was great!!

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November 18, 2025

5.0

Listens

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November 17, 2025

5.0

Dr. Ayers was very thorough and to the point.

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November 17, 2025

5.0

Very thorough and pleasant to work with.

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November 14, 2025

5.0

Dr Ayers is easy to relate to. His assessments & instructions are clear & he invites questions to ensure I understand what's going on with my diagnostics & treatments.

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November 12, 2025

5.0

Great personal care and knowledge.

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November 11, 2025

5.0

He is a doctor that explains everything to me. He has heart.

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November 11, 2025

5.0

excellent doctor

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November 11, 2025

5.0

a doctor who is an expert in his field and cares for his patients

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November 11, 2025

5.0

He is very caring and explains things well

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November 10, 2025

5.0

He is excellent!

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November 06, 2025

5.0

Listened and answered my questions.

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November 05, 2025

5.0

If you know Dr Ayers you'll understand his love and commitment and compassion for his patients

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November 02, 2025

5.0

Doctors Ayers is kind and professional

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November 01, 2025

5.0

Excellent Doctor

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October 31, 2025

5.0

He is a straight talker n concern about patient. He makes feel you are the only patient he has!!

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October 30, 2025

5.0

Dr. AYERS is deeply concerned about each individual and thoughtfully addresses the challenges of best treatments for that person. He is extremely trustworthy.

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October 27, 2025

5.0

I am confident in his knowledge and find his patient care to be complete and informative.

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October 24, 2025

5.0

See previous response regarding Dr Ayers. Thank you for over 11 years of care.

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October 20, 2025

4.0

Doctor listens, seems very knowledgeable and compassionate.

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October 20, 2025

5.0

Cares about my well being

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October 17, 2025

5.0

Listened to my concerns and acted on them had only my best interest at heart

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October 16, 2025

5.0

He is very thorough, pleasant, ,professional and informative. He listens well to what you have to say. Seems very caring.

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October 15, 2025

5.0

Dr. Ayer's is the best doctor!

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October 15, 2025

5.0

Very knowledgeable and professional

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October 14, 2025

5.0

Very knowledgeable , caring, and thorough.

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October 13, 2025

5.0

Explains results and what they Mean

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October 03, 2025

5.0

Excellent doctor.

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September 30, 2025

5.0

I love his down to earth handling of my illness. I truly believe and respect what he tells me and I try to follow his directions.

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September 28, 2025

5.0

He is very open and willing to explain in detail what medical strategies are useful and why.

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September 26, 2025

5.0

Dr. Ayers cares for every individual he sees he's very patient and put your health first and very thankful for him

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September 24, 2025

5.0

He wants all of his patients to survive and thrive !

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September 23, 2025

5.0

This guy knows his stuff

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September 23, 2025

5.0

He was great!

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September 18, 2025

5.0

Excellente care

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September 16, 2025

5.0

He is so knowledgeable. He takes his time, answering every question. He includes the patient in decision-making while offering guidance and the latest scientific data. He deserves a raise!

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September 14, 2025

5.0

He has a lot of compassion with me, and he also has a sense of humor, which is very important to me. He gave me all the right tests such as the OncoDx, and the BCI, helping me understand that I had choices, and these tests could help me guide my decisions.

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September 13, 2025

5.0

Very caring

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September 12, 2025

5.0

His plan is tailored made for me. He wants the best outcome.

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September 11, 2025

5.0

He is my best doctor and really care

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September 11, 2025

5.0

Very caring person. Also informative.

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September 09, 2025

5.0

I've been seeing Dr. Ayers for 5 years now, and have always found him to be knowledgeable, considerate and reassuring. He takes all the time I need during visits. He explains things thoroughly. He doesn't dismiss me as an elderly person who doesn't matter.

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September 09, 2025

5.0

Dr. Ayers makes you feel comfortable and doesn't rush the appointment.

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September 09, 2025

4.0

He listens

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September 09, 2025

5.0

Knowledgeable, did not feel rushed, and answered all questions.

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September 09, 2025

5.0

He has my best interest at heart.

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September 08, 2025

5.0

He is very approachable, kind, and offers good explanations and discussion of treatments.

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September 08, 2025

5.0

Very informative, knowledgeable doctor

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September 03, 2025

5.0

Explains everything....caring

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September 02, 2025

5.0

Dr Ayers is informed, friendly, kind and a good communicator

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September 01, 2025

5.0

Excellent doctor who has successfully guided me through my entire 22 year journey with cancer. He has gone above and beyond in tending to details and communication of information, especially at critical times, reflecting patient focused care.

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August 26, 2025

5.0

He is one of the best doctors i have been working with on my Cancer care. I just love him. He is personal and compassionate

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August 25, 2025

5.0

Always willing to explain everything. Spent as much time with me as I needed

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August 20, 2025

5.0

Dr. Ayer's is very knowledgeable and discusses matters clearly. He keeps me informed on future steps in my care and encourages good health protocols

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August 18, 2025

5.0

Personable, caring and knowledgeable

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August 18, 2025

5.0

He always takes time to listen and explain what I need to know

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August 14, 2025

5.0

Dr. Ayers has lead my treatment and made sure that the correct follow up is done without delay. Dr. Ayers listens attentively and interprets clearly even when I am uncertain.

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August 14, 2025

5.0

He and his team gave me a second chance at life

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August 12, 2025

5.0

FOr me he is the face of the team. He listens and then explains what he is recommended and why

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August 11, 2025

5.0

Kind physician who takes the time to review the chart and offer good advice.

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August 11, 2025

4.0

He is thorough, knowledgeable and listens

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August 11, 2025

5.0

Knowledgeable and caring!

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August 10, 2025

5.0

Super nice

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August 10, 2025

5.0

Professional

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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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A journey to wellness.

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