Robert A. Bayer, MD

5.0 
1598 ratings  Read Reviews
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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:
MD, Northwestern University Feinberg School of Medicine - 1984
Residency:
University of Illinois College of Medicine at Chicago - 1987
Fellowships:
Loyola University Medical Center - 1992

Languages Spoken

  • German

Board Certifications

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

Faculty Profile

Clinical Assistant 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:
Central DuPage Hospital
Delnor Hospital
Kishwaukee Hospital
Valley West Hospital

Ratings and Reviews

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Overall Rating

5.0
5.0 

1598 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

April 28, 2025

5.0

Great personality and very knowledgeable

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April 26, 2025

5.0

He has a calm and positive point of view. At the same time, he does deliver bad news in a professional and manner.

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April 25, 2025

5.0

The very best of the best!!

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April 24, 2025

5.0

Listens, carling & thorough

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April 17, 2025

5.0

Great physician

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April 16, 2025

5.0

I think he's a good Doctor

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April 16, 2025

5.0

I hope that this gets out to all the people that change lives at the DeKalb Cancer Center If there was an 11 ...I would hit it! Dr. Bayer and his team saved my life! That deserves an 11...no seriously. I was diagnosed as a Stage 4 Mantel Cell Lymphoma patient. The first doctor I saw didn't have the best bedside manor and didn't make me feel like this fight was going to be successful. The one thing he did do for me was to direct me to Dr. Bayer at the DeKalb Cancer Center. From the first moment I was directed to Dr. Bayer and his team I began to feel that I have a chance. After a long introductory conversation I had with doctors on the team and supporting staff, I knew I was ready to fight! I was going to be in a study and that helped me to feel that many people were going to be part of my journey, but Dr. Bayer was my point person and the doctor that was going to lead me on this path to recovery. We have been together for over 4 years now and we have shared more than just results, we have shared life. I could tell that he was going to be aggressive with my treatments and when there were moments that things didn't look right, he had me getting tests and biopsies to make sure that the course we were on was the correct one. He worked to get me the best care, answered questions, sent me to other doctors on the team for answers but above all gave me a reason to continue treatments. He didn't overstate anything but the things he does, he does with a confidence that gives patients a reassurance that the choices that are being made are good ones. It doesn't hurt to know that the staff at the Cancer Center loves him. I can't tell you how many times someone would say to me, " Oh you have Dr. Bayer" and a smile would come across their face. It gave me an understanding into how much he is respected throughout the Cancer Center. When I say thank you to him for everything he has done for me, he always says that it is a "Team Effort." As a high school coach, I appreciated the fact that he recognizes that everyone involved in my recovery has played an important roll. So I am saying THANK YOU to all of you who have had a part in my treatments and recovery. I know there were days that Dr. Bayer had to deliver difficult news to other patients. I could see it in his face. I can't imagine what that must feel like. So I was glad that usually when it came to my time, the news was usually good, at least the news meant that our path could continue in a positive direction. I'm sure that helped to reinforce why he worked so hard to become a doctor and that he continues to work hard at changing the landscape of cancer for the better. So, would I recommend Dr. Bayer... HELL YES! Would I recommend my team... HELL YES! If you change just one life, is it worth it???.. Well count me as that LIFE you changed.

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April 15, 2025

5.0

Very knowledgeable and listens

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April 14, 2025

5.0

Always explains things so I can understand.very kind,even when he's running behind he never rushes with me.

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April 07, 2025

5.0

Very knowledgeable

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March 27, 2025

5.0

He doesn't hide of what to expect in my Cancer journey.

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March 27, 2025

5.0

Professional, thorough and friendly.

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March 26, 2025

5.0

Dr Bayer is a great Dr, explains what's going on and answers my questions

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March 24, 2025

5.0

the best!

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March 24, 2025

5.0

experienced caring physician

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March 24, 2025

5.0

Very nice and makes me feel comfortable and answers any questions I have.

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March 21, 2025

5.0

Cares about patients Thorough. Explains so I understand Encourages questions Takes his time with patients. Can't say enough good about him

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March 19, 2025

5.0

Listens, thoughtful, explains everything. Down to earth doctor.

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March 17, 2025

5.0

Dr. Bayer is brilliant and caring- so thankful for him.

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March 13, 2025

5.0

He is the best

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March 13, 2025

5.0

He is incredibly thorough, knowledgeable and friendly. He always takes time to explain treatment, answers all questions and never seems rushed.

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March 11, 2025

5.0

Dr Bayer was very informative and took ample time to explain what was going on, and in doing so was able to rest some of my fears. He reviewed my history and actually listened to my concerns and worries.

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March 06, 2025

5.0

He always takes as much time as needed to discuss and answer my questions.

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March 06, 2025

5.0

Dr. Bayer always provides a detailed diagnosis and treatment plan.

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March 01, 2025

5.0

Checks & explains numbers etc. answers questions patiently

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February 25, 2025

5.0

Superb doctor

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February 24, 2025

5.0

He is the bast

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February 24, 2025

5.0

His vast knowledge of cancer and how to treat it.

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February 22, 2025

5.0

He explained all my problems

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February 21, 2025

5.0

Told me results of the procedure I had and the options and best treatment for now

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February 21, 2025

5.0

He listens to you and thoroughly answers questions or concerns.

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February 20, 2025

5.0

He seems to care about me

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February 19, 2025

5.0

I appreciated Dr. Bayer taking the time to explain my test results in detail, ensuring that I understood his thought process. I felt confident that I am in very capable hands.

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February 16, 2025

5.0

He works with Doctor [ ] & takes care of me in between Chgo visits! Listens to my concerns & helps me with my chemo challenges! Excellent care!

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February 14, 2025

5.0

Knowledgeable, thorough caring

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February 13, 2025

5.0

Dr Bayer is the most kind and caring physician. You can tell he truly cares about his patients.

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February 13, 2025

5.0

Dr Bayer is a very attentive, compassionate and thorough physician.

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February 13, 2025

5.0

DR Bayer has been my Dr for many years and I can ask him anything and feel comfortable with his decisions about my health

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February 11, 2025

5.0

Great human with vast knowledge

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February 08, 2025

5.0

Very knowledgeable and caring doctor

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February 07, 2025

5.0

good results

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January 29, 2025

5.0

Excellent physican

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January 27, 2025

5.0

Dr Bayer is a great Dr and answers my questions

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January 27, 2025

5.0

good doctor

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January 25, 2025

5.0

Knowledgeable, empathetic, and personable

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January 24, 2025

5.0

He is thorough and listens. He is hopeful and encouraging. He is direct and carefully explains. He is quietly positive, but tells it like it is.

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January 22, 2025

5.0

Excellent patient care.

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January 21, 2025

5.0

Very good Dr.

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January 15, 2025

5.0

Cancer care outstanding

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January 09, 2025

5.0

Dr. Bayer and Dr. [last name] have me on a cancer treatment that has me in remission.

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January 09, 2025

5.0

Very professional and personable

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January 08, 2025

5.0

Very pleased with the long term care I have received from him.

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January 03, 2025

5.0

Wonderful Doctor and explains everything!

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December 26, 2024

5.0

Dr. Bayer knows his business, spends whatever time is needed to answer questions and discuss treatment plans and objectives . A very personable man.

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December 20, 2024

5.0

Cares about his patients

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December 20, 2024

5.0

He is thorough looking over blood work and encouraging

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December 18, 2024

5.0

Dr was patient. Detailed explanation of my issue and its solution.

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December 18, 2024

5.0

He is very caring and professional. He always lets me know exactly what is going on with my treatment.

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December 16, 2024

5.0

He take care of his patients

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December 12, 2024

5.0

Dr. Bayer was very thorough and honest

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December 11, 2024

5.0

Dr Bayer has taken good care of me since my stroke. He took a deep dive to find the issues. He has been great support for other issues as well. We need more Dr's like him.

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December 10, 2024

5.0

Puts a personal touch to every visit

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December 07, 2024

5.0

Dr. Bayer is a brilliant physician who has treated me with the finest medical care while showing kindness and respect.

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December 06, 2024

5.0

He tells you a plan that works.

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December 06, 2024

5.0

Dr. Bayer spent a lot of time with me and seemed to care about finding answers. He's very thorough.

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December 05, 2024

5.0

Friendly proffessional treatment

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December 03, 2024

5.0

He gives the best in all he does.

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December 02, 2024

5.0

Dr. Bayer is thorough and prepared for your appointment. He took his time to review my lab results and then answered any remaining questions that I had.

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December 01, 2024

5.0

He is excellent.

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November 26, 2024

5.0

Excellent doctor top of his field saved my life and is a wonderful soul.

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November 26, 2024

5.0

On top of my care, great attitude, ready to answer all my queries.

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November 25, 2024

5.0

He takes good care of me!

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November 24, 2024

5.0

He's a very thorough doctor and he takes the time and explains everything to you.

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November 21, 2024

5.0

He's the best! Explains everything to you. Gives you time to ask questions and very thorough. I'm so glad he's my Doctor!

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November 20, 2024

5.0

He cares and he is so very knowledgeable

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November 19, 2024

5.0

He is courteous and professional

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November 18, 2024

5.0

He's thorough, kind, compassionate and answers all questions.

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November 12, 2024

5.0

very thorough

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November 07, 2024

5.0

He's the best! Knowledgable and explains in simple terms for the patient to understand.Dr. Bayer is also generous with the time he spends with his patients and shows he genuinely cares!

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November 07, 2024

5.0

Extremely knowledgeable. Explains things very well. Shows that he cares.

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November 05, 2024

5.0

I trust Dr. Bayer to give me the best care possible.

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November 01, 2024

5.0

Very professional and knowledgeable

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October 31, 2024

5.0

I have been under Dr. Bayer's care for the past 4 years. at no time have I ever felt that he had my best interests in mind and was putting me in a position to be as well as possible.

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October 26, 2024

5.0

I have recommended Dr Bayer to several people, he is very caring and keeps up to date on all the latest information.

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October 25, 2024

5.0

Very thorough and very honest with his explanations

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October 24, 2024

5.0

Best Doctor ever! Never feel rushed. Always answers every question.

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October 24, 2024

5.0

He is very knowledgeable, compassionate, and caring.

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October 23, 2024

5.0

Dr Bayer listens, answers questions and cares about a balance between my quality of life and treatment.

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October 21, 2024

5.0

Very thorough looking over test results and how I am doing

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October 21, 2024

5.0

Knows what he is talking about

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October 15, 2024

5.0

He listens to me and gives me positive Advice.

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October 15, 2024

5.0

Dr. Bayer is my Savior! I never felt like because I am stage 4 cancer, that he has given up on me. It will be 5 years in December since my diagnosis. We're not giving up

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October 15, 2024

5.0

Experience.

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October 15, 2024

5.0

he's easy to understand and to the point..

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October 14, 2024

5.0

He's a good Doc. Explains everything to you,always answers my ?s so I can understand.I Trust him completly

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October 11, 2024

5.0

He is easy to talk to, takes time to answer questions, and is reassuring in his diagnosis.

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October 10, 2024

5.0

He's the best not just for his knowledge but his care for his patients. He's down to earth and will answer your questions. Has a calm nature and you can tell he is passionate about his work.

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October 10, 2024

5.0

He has passion

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October 02, 2024

5.0

Very understanding to your concerns, polite

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September 21, 2024

5.0

He is very caring and always puts my well being first

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Disclosures

Robert A. Bayer, MD reported no external professional relationships for calendar year 2024.

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.