Mark W. Stolar, MD

Mark W. Stolar, MD

5.0 
1214 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Internal Medicine

Insurance

For specific plans, see the full plan list. To be sure this medical professional is covered by your insurance plan, please contact your insurance carrier.

Practice Focus Areas

Education

Medical Education:
MD, University of Illinois at Chicago College of Medicine - 1979
Residency:
Advocate Health Care (Advocate Lutheran General Hospital) - 1982
Fellowships:
McGaw Medical Center of Northwestern University - 1984

Board Certifications

  • American Board of Internal Medicine - Endocrinology, Diabetes & Metabolism (Certified)
  • American Board of Internal Medicine - Internal Medicine (Certified)

Faculty Profile

Clinical Associate Professor, Feinberg School of Medicine

View Faculty Profile

Practice Groups and Affiliations

Medical Group:
Northwestern Medicine Regional Medical Group
Alignment Category:
Northwestern Medicine Physician Network
On Medical Staff At:
Huntley Hospital
McHenry Hospital
Woodstock 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.

Read Ratings FAQs

Overall Rating

5.0
5.0 

1214 Ratings

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

100 Most Recent Reviews

August 30, 2022

5.0

Dr Stolar is friendly and concerned about our long term health.

Was this helpful? Yes (4) No (0)

Thanks for your feedback!

August 27, 2022

5.0

I like the way he treats his patients

Was this helpful? Yes (2) No (0)

Thanks for your feedback!

August 26, 2022

5.0

Dr. Stolar is great.

Was this helpful? Yes (2) No (0)

Thanks for your feedback!

August 26, 2022

5.0

Dr Stoler patient, very pleasant and listens

Was this helpful? Yes (2) No (0)

Thanks for your feedback!

August 26, 2022

5.0

Dr. Stolar is the best PC MD I've ever had, and I'm 70 years old. I've had many physical issues over the last few years and he has been with me every step of the way. I'm not sure where I would be without him. He is knowledgeable, thorough, kind, and I trust him completely.

Was this helpful? Yes (3) No (0)

Thanks for your feedback!

August 26, 2022

5.0

He explains everything and answers all your questions.

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

August 25, 2022

5.0

Takes time with you.

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

August 24, 2022

5.0

Dr Stolar understands my medical health problems and hears me when I try to explain my symptoms.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 24, 2022

5.0

Thorough. Great at diagnostics and refers good doctors. Like that he is both endocrine and internist. One stop for me

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 24, 2022

5.0

There isn’t a better diagnostician than him. He is brilliant.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 22, 2022

5.0

Knowledgeable and responsive

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 19, 2022

5.0

Dr Stolar has been my doctor for at least 10 years. He is one of the most caring and understanding people I know, as a physician and person.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 18, 2022

5.0

Best ever

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 17, 2022

5.0

Great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 17, 2022

5.0

Stolar is the best.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 17, 2022

5.0

The best doctor ever. Best bedside manner, personable, consistent accurate diagnosis and well thought out treatments.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 17, 2022

5.0

Very good doctor

Was this helpful? Yes (0) No (1)

Thanks for your feedback!

August 16, 2022

5.0

He listens to me and is quick to answer any questions and address my concerns.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 16, 2022

5.0

He is very knowledgeable and always is an expert. I trust him.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 12, 2022

5.0

Thorough, listens, excellent

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 11, 2022

5.0

Dr Solar is so great , he understands and listens his patients and does not make me feel discredited. He is on top of all the lastest studies and open to hear what his patients think, not just keeping a protocol. He always is kind and explains things in a way I can understand them. He also remembers things about my life (you just got married, you ran a race etc) that makes me feel like he is personally interested in my health. He is one of the best Dr's I ever had !!!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 10, 2022

5.0

Fantastic Doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 10, 2022

5.0

He is the best doctor. Very attentive, listens, and explains very well. I travel to see him and will continue

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 09, 2022

5.0

He's good.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 07, 2022

5.0

I think I have a good relationship with Mark Stolar that goes back many years. I like his relaxed listening style, which sets me at ease. He addresses my concerns, even if they are not always or even often conclusive -- which after all is the nature of science, especially medical science -- and he suggests reasons and possible ways of checking (tests, for example). I'm giving the McHenry venue and Dr. Stolar a nine rather than a ten because I like to think there's always room for improvement.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 06, 2022

5.0

Very personable listens to what Bothering you takes blood test knows exactly what your body needs and if you need he will send you to a Specialist

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 05, 2022

5.0

Didn't feel rushed

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 04, 2022

5.0

Dr.Stolar takes the time to research your care.He always makes you feel comfortable.Very Professional.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 03, 2022

5.0

Dr. Stolar is extremely knowledgeable, attentive and he cares about his patients.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 03, 2022

5.0

He is ALWAYS an excellent clinician, who always has an answer that fixes the problem or knows someone to refer to who can.Listens, prioritizes, responds I wish he was 15 years younger so he could be my doctor for the rest of my life.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

August 03, 2022

5.0

Great bed manor. Always up with the times. Great man

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 31, 2022

5.0

Dr Stolar is a outstanding doctor, who gives the very best care one could receive.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 29, 2022

5.0

He is an extremely patient doctor who listens to you.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 29, 2022

5.0

He is the absolute best!!!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 28, 2022

5.0

Dr. Stolar has been our primary internist & endocrinologist since very early 90’s. He is the BEST. He INSTANTLY got what I was saying because he listened. Something must doctors don’t do these days.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 27, 2022

5.0

Dr. Stollar is extremely efficient and cares about his patients well-being. Not to mention a wealth of knowledge!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 26, 2022

5.0

Dr. Stolar is one of the best internists. I am lucky to have him as my Dr.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 23, 2022

5.0

Very knowledgeable and sincerely caring doctor who genuinely listens to concerns and goes an extra mile to ayers to our needs.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 22, 2022

5.0

Best doctor We’ve ever known, friendly, professional and at top of his field.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 22, 2022

5.0

Great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 21, 2022

5.0

He’s the best !

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 20, 2022

5.0

Dr. Stolar has always given me his focus and attention to my personal health concerns. He always listens closely to what is said, and reacts appropriately and professionally. I know that I can trust him to recommend the best solutions to any problem I share with him, be it pharmaceutical or medical referral. If there is a problem with a medication, I know that he will make prompt changes. He is always prompt in his responses to MyChart.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 20, 2022

5.0

Friendly staff and very helpful

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 17, 2022

5.0

Best diagnostician ever. Smart smart smart.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 17, 2022

5.0

He connects information from other NM docs and arrives at a diagnosis and treatment.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 15, 2022

5.0

Dr. Stolar is an amazing doctor. He’s been taking great care of me for over 20 years.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 14, 2022

5.0

Best internist I have been lucky enough to be referred to many years ago.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 14, 2022

5.0

Brilliant, serious, caring, witty, dedicated, etc. Also, he remembers everything important.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 12, 2022

5.0

He gets back to me right away and takes the time to talk about things.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 11, 2022

5.0

he is a very personable and listens and answers questions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 08, 2022

5.0

DR. Stoler, is professional, articulate + doesn’t RUSH his patients. I had a list w/ many questions to askHim. He answered all of my questions+ any follow ups, he puts you @ ease. I didn’t feel like I had to minimize my list so he could move on. With him you Don’t, feel like a NUMBER, who is allotted 15 MINUTES!!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 08, 2022

5.0

He is so knowledgeable and understanding of your health issues

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 08, 2022

5.0

Professional, caring, friendly & “down to earth” manner which makes him relatable. He appears to be interested in providing the best possible care, he is friendly and nonjudgemental. He keeps current with best practices and takes time to explain things. When in just office, It feels like I can trust him, which is very important to me.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 07, 2022

5.0

He is outstanding and worth the drive up North.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 06, 2022

5.0

Dr. Stolar listened to ALL of my concerns and genuinely cared about helping me. I’ve had a hard time trusting anyone in the healthcare industry lately but I called my boyfriend once I left and told him how excited I was and that my faith in doctors was restored.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 06, 2022

5.0

Easy to talk too. Knows what he's doing, I'm so happy to find him on Northwestern providers..

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 06, 2022

5.0

He his excellent physician.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 06, 2022

5.0

In Dr. Stolar’s field he is the best.He is extremely efficient when you have your appointment or even when you communicate over MYCHART with him.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 03, 2022

5.0

Professional HelpfulAttentiveFriendly

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 02, 2022

5.0

Great guys- connection beyond doctor/patient!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

July 01, 2022

5.0

Awesome and caring

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 30, 2022

5.0

He is simply the best!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 29, 2022

5.0

He listens. He's smart. He knows his way around the Chicago market. I'm very picky and I could not be happier with his care.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 29, 2022

5.0

He definitely understands me and what I need to feel comfortable and get the best medical care. I have stayed with him even though he moved to McHenry office because he listens and combines his feedback with the best medical experience and background.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 29, 2022

5.0

I have been a patient of Dr. Stolar for over 20 years, going on 30. He's kind, doesn't use 'jargon' in his explanations, is honest without coming off rude or insensitive, and he doesn't throw a pill at everything. He was even willing to stop being my primary if I didn't stop smoking (lucky for me I had stopped before it came to that). I know some day he will retire, but I'm hoping we go through this senior phase together.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 29, 2022

5.0

Good listener

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 26, 2022

5.0

I have been going to Dr. stolar, for over 30 years and find him to be amazing

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 24, 2022

5.0

Dr. Stolar always listen to his patience and he never rush the appointment. He has very good bed side matter. That why I travel about two hours to see him.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 24, 2022

5.0

He was very friendly and didn't just talk but also listened. The only reason he only got a 9 is because i never give 10s.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 24, 2022

5.0

He's a fabulous human being and doctor. Wish he were still downtown.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 24, 2022

5.0

Very thorough and concerned

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 23, 2022

5.0

Very professional and intelectual

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 22, 2022

5.0

He explained options and what tests need to be done to complete my care

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 21, 2022

5.0

Dr. Mark Stolar is a very smart, friendly and patient doctor. I have been seeing him as my primary doctor since 1990. I can discuss with him everything about my health and he always make sure that I get the necessary treatment.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 21, 2022

5.0

He is the best diagnostician, knows his patients, provides time for questions and responses

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 18, 2022

5.0

Simply put, he’s the best.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 17, 2022

5.0

Outstanding doctor that I have gone to for years.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 16, 2022

5.0

Dr. Stolar is always pleasant, thorough and listens to the patient.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 16, 2022

5.0

Was very professional and took care of the problem

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 15, 2022

5.0

He’s great. Scientific but intuitive. Low key and professional.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 15, 2022

5.0

He has been my physician for probably 20 years or more. He listens, he is a great diagnostician and even though he moved over 50 miles away I still come to him

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 08, 2022

5.0

Great bedside manner, knowledgeable and caring.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 08, 2022

4.0

He was very nice

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 06, 2022

5.0

Dr Stolar is an incredible, compassionate Dr who listens to me and works closely with me to provide care with my issues and understands my alternative medicine needs

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 02, 2022

5.0

Great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 01, 2022

5.0

He's simply the best!

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 01, 2022

5.0

He was thorough and took his time answering my questions. He came highly recommended.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

June 01, 2022

5.0

Great demeanor. Listens. Really seems to care about you as a patient.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 31, 2022

5.0

I always recommend him, however he moved out of the city.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2022

5.0

Dr Stolar is an extraordinary physician; he’s thorough, knowledgeable, and kind.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2022

5.0

He is the best. Listens cares and wants to find with me the best solution.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2022

5.0

knowledgeable, listens well, elicits patient preferences, on time

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 27, 2022

5.0

This was the first time I met him, he was approachable, friendly, I felt he listened to me. He’s my new family doctor.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 24, 2022

5.0

Great doctor

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 19, 2022

5.0

he was recommendation. I also drove an hour to specify see him

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 17, 2022

5.0

his sincere concern for my general health

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 16, 2022

5.0

Great to work with. Very attentive to my questions and concerns.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 16, 2022

5.0

He has been my PCP for a long time. He solves mysteries, has excellent diagnostic skills, listens to all my questions and concerns. He honors what he wrote in a medical journal in that he truly believes the relationship with patients is sacro-sanct. I followed him from Gold Coast to McHenry because he is worth his weight in Gold.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

May 16, 2022

5.0

When you have found the very best, no need to look elsewhere. Dr Stoler is unmatched for his care and concern. Highly knowledgeable especially in the area of diabetic care and medicines associated with that disease. He is very cooperative with other physicians and very humble in the knowledge he brings to the table for treating the WHOLE patient. Not afraid to offer a choice in medical solutions.

Was this helpful? Yes (0) No (0)

Thanks for your feedback!

March 31, 2022

5.0

He’s wonderful. Understanding and caring

Was this helpful? Yes (1) No (0)

Thanks for your feedback!

Disclosures

Service on Board of Directors

Faculty member served in a fiduciary capacity, such as a board member/director, officer, or trustee, for the following companies or other entities

  • Endocrine Fellows Foundation

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.