Mark W. Stolar, MD

Mark W. Stolar, MD

5.0 
1560 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medicine Regional Medical Group

Primary Specialty

Internal Medicine

Is your insurance accepted? Select plan

Schedule Appointment

Choose a scheduling option:

New Patient

Appointments limited in the next 6 months. Call for availability.

 RETURNING PATIENT

Schedule online with your MyNM account

 CALL

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 

1560 Ratings

Sort By Newest

Reviews from Patients

100 Most Recent Reviews

Reviews from Patients

Sort By Newest
100 Most Recent Reviews

April 26, 2024

5.0

He is thorough. Explains things to me. He has helped me get my illnesses under control. I drive 60 miles to see him. It is absolutely worth it. U totally trust him and his strategies

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

Thanks for your feedback!

April 26, 2024

5.0

I met Dr.Stolar in 2015 and he was a very compassionate, knowledgeable, and thro doctor. Uses his time wisely and listen and answers any questions of patients. Runs appropriate testing. Would recommend him to anyone for healthcare.

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

Thanks for your feedback!

April 24, 2024

5.0

He is an excellent doctor with great knowledge and compassion

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

Thanks for your feedback!

April 19, 2024

5.0

He’s been my doc for around 30 years. He’s kind, caring and thorough.

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

Thanks for your feedback!

April 16, 2024

5.0

Dr. Stolar is the best doctor I’ve ever seen. He is understanding, truly listens and makes me feel comfortable every time.

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

Thanks for your feedback!

April 14, 2024

5.0

He has been my PCP for over 40 years. He is smart, thorough, and an excellent clinician. That is why I continue to drive to see him in his new location.

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

Thanks for your feedback!

April 14, 2024

5.0

He is my longtime doctor. He is the best doctor I could find. I’m associated with him for more than 30 yrs.

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

Thanks for your feedback!

April 12, 2024

5.0

I could go more than 10 if it’s an option. No one better than him in quality of care.

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

Thanks for your feedback!

April 06, 2024

5.0

Dr Stolar is the best doctor. We love him. He is always on top of everything, really listens and takes good care of me and my husband.

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

Thanks for your feedback!

April 05, 2024

5.0

Best Doctor with a great staff

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

Thanks for your feedback!

April 05, 2024

5.0

Timely and efficient.

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

Thanks for your feedback!

April 04, 2024

5.0

I’m very lucky to have Dr Stolar as my primary. Ive followed him as he has moved his practice because I don’t think I could find a more knowledgeable and caring physician.

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

Thanks for your feedback!

March 27, 2024

5.0

Excellent care and advice.

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

Thanks for your feedback!

March 23, 2024

5.0

Fifteen years of good service

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

Thanks for your feedback!

March 22, 2024

5.0

Always on time, thorough conversation with patient and great follow up

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

Thanks for your feedback!

March 22, 2024

5.0

Outstanding patient care

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

Thanks for your feedback!

March 19, 2024

5.0

Two words...best doctor

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

Thanks for your feedback!

March 19, 2024

5.0

Excellent doctor

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

Thanks for your feedback!

March 16, 2024

5.0

Great professional manner. Always attentive to the patient's needs.

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

Thanks for your feedback!

March 15, 2024

5.0

Smart, knowledgeable, kind and listens.

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

Thanks for your feedback!

March 15, 2024

5.0

Top knowledge and experience

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

Thanks for your feedback!

March 14, 2024

5.0

He is just the best!!!!!

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

Thanks for your feedback!

March 13, 2024

5.0

Great care provider. Really understands my history and listens and communicates very well.

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

Thanks for your feedback!

March 13, 2024

5.0

Dr Stolar is the best physician I have ever had!!

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

Thanks for your feedback!

March 12, 2024

5.0

Dr. Stolar always gives his undivided attention and really listen to what is going on.

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

Thanks for your feedback!

March 08, 2024

5.0

Dr. Stolar is a clear communicator and has a professional and empathetic approach. I always feel heard and he does a great job of explaining things when I have questions.

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

Thanks for your feedback!

March 06, 2024

5.0

He is an excellent physician!!

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

Thanks for your feedback!

March 01, 2024

5.0

I’ve been going to Dr. Stolar for many years. Still have great respect for his insights and guidance. Staff at Woodstock office are very nice.

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

Thanks for your feedback!

February 29, 2024

5.0

Dr. STOLAR……the best doctor!! I have unquestionable trust, confidence & all.

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

Thanks for your feedback!

February 29, 2024

5.0

He’s one of the best

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

Thanks for your feedback!

February 28, 2024

5.0

Excellent questions, listens, responsive. All doctors should be like him.

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

Thanks for your feedback!

February 27, 2024

5.0

Dr. Stolar is exemplary.

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

Thanks for your feedback!

February 23, 2024

5.0

Super knowledgeable

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

Thanks for your feedback!

February 23, 2024

5.0

He’s a very professional, caring and a knowledgeable physician.

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

Thanks for your feedback!

February 22, 2024

5.0

Dr Mark is great! very knowledgeable always explains in terms I understand. He patently works with me and my type 2 diabetes. I feel well cared for and cared about.

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

Thanks for your feedback!

February 22, 2024

5.0

Very knowledgeable. Very attentive. Very understanding.

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

Thanks for your feedback!

February 22, 2024

5.0

I’m 63 and Dr Stolar is the best Dr there is . He listens to you and he is very knowledgeable Dr.

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

Thanks for your feedback!

February 21, 2024

5.0

I followed Dr Stolar from downtown to his current location. He has been my Dr since 2005. He’s caring, knowledgeable and works with his patients to figure out what might be going on. He’s the best

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

Thanks for your feedback!

February 20, 2024

5.0

Have been his patient for 23 years. He is the absolute best internist/endocrinologist I have ever had!

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

Thanks for your feedback!

February 19, 2024

5.0

He is super knowledgeable, engaged, responsive and an outstanding physician.

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

Thanks for your feedback!

February 19, 2024

5.0

Dr. Stolar is a truly outstanding clinician.

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

Thanks for your feedback!

February 16, 2024

5.0

Prepared and considers the big picture

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

Thanks for your feedback!

February 16, 2024

5.0

He’s the best!

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

Thanks for your feedback!

February 16, 2024

5.0

Dr Stolar and his team provide an outstanding care and attention to my medical needs.

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

Thanks for your feedback!

February 08, 2024

5.0

Dr. Stolar is interested in getting me better

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

Thanks for your feedback!

February 07, 2024

5.0

Dr. Mark Stolar is a wonderful doctor.

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

Thanks for your feedback!

February 06, 2024

5.0

He’s been my primary care doctor for 15+ years

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

Thanks for your feedback!

February 02, 2024

5.0

He is the best I ever came across in his professional attitude and very knowledgeable and patient!

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

Thanks for your feedback!

February 01, 2024

5.0

He is excellent! I trust him, have seen him for many years, & he is an extraordinary person & gifted physician. I appreciate him.

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

Thanks for your feedback!

January 30, 2024

5.0

Thorough, expeditious, considerate, kind, friendly and pleasant.

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

Thanks for your feedback!

January 30, 2024

5.0

Dr Stolar has taken care of my health when others had know idea. I been with him for years.

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

Thanks for your feedback!

January 27, 2024

5.0

Just an incredible doctor with wonderful bedside manner and always responds to my questions with great explanations

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

Thanks for your feedback!

January 26, 2024

5.0

Dr. Stolar listens to you and treats you like a human who deserves respect. He is knowledgeable and helpful.

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

Thanks for your feedback!

January 26, 2024

5.0

He's the best.

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

Thanks for your feedback!

January 22, 2024

5.0

Excellent at diagnosing the problem and providing the best treatment. Thank you.

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

Thanks for your feedback!

January 22, 2024

5.0

Excellent doctor. Never in a rush.

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

Thanks for your feedback!

January 22, 2024

5.0

He is a fantastic doctor, respectful, humerous and practices the best medicine. Please have more internists like Dr Stolar around, there seems to be a lower level of competent physicians at NMH than there used to be.

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

Thanks for your feedback!

January 19, 2024

5.0

Has been my long time Dr. Takes time Listens

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

Thanks for your feedback!

January 18, 2024

5.0

Dr. Stolar, as I have said before, is the best physician I have experienced in my life. Thorough, great bedside manner, beloved by both his patients and his staff. He is thorough and easy to talk with. He listens,and solves problems are addressed and followed up on. There is a reason so many of his Chicago patients have followed him 60 miles to McHenry/Woodstock.

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

Thanks for your feedback!

January 17, 2024

5.0

Amazing Doctor who cares, listens, and is soo smart

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

Thanks for your feedback!

January 17, 2024

5.0

He has saved me more than once

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

Thanks for your feedback!

January 17, 2024

5.0

Thorough, listens, good bedside manor, good humor

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

Thanks for your feedback!

January 16, 2024

5.0

Always listens. Makes thoughtful adjustments to treatment and explains why. As patient when I am really worried about something as he is when things are fine. He’s an asset to NWH

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

Thanks for your feedback!

January 15, 2024

5.0

Best doctor I ever had

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

Thanks for your feedback!

January 12, 2024

5.0

The best

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

Thanks for your feedback!

January 12, 2024

5.0

Dr. Stolar is though and listens to all my concerns. He answers questions thoroughly.

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

Thanks for your feedback!

January 11, 2024

5.0

Dr. Stolar is a wonderful doctor. He answers all questions and is very thorough.

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

Thanks for your feedback!

January 10, 2024

5.0

Simply the best!…

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

Thanks for your feedback!

January 07, 2024

5.0

Dr Stolar is a doctor I trust

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

Thanks for your feedback!

January 05, 2024

5.0

I have been a patient of Dr. Stolar for decades. He is the best of the best: extremely knowledgeable, listens to my concerns and is open to considering various treatment options, asks excellent questions and provides thorough care

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

Thanks for your feedback!

January 05, 2024

5.0

Attentive and insightful

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

Thanks for your feedback!

January 05, 2024

5.0

Simply the best

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

Thanks for your feedback!

January 04, 2024

5.0

Takes time to talk to the patient and explains issues and options

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

Thanks for your feedback!

January 04, 2024

5.0

Dr. Stolar is excellent on listening to the patient and explaining the procedures for the doctor. He’s been my doctor for over 20 years and it is hard to find a doctor like him with an excellent care.

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

Thanks for your feedback!

December 21, 2023

5.0

Dr. Stolar always patiently answers my health questions with detailed responses and I never feel like he is rushing to get to his next patient. Also, my appointments have always been on time or very close to on time and that is greatly appreciated.

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

Thanks for your feedback!

December 17, 2023

5.0

Excellent care for 28 straight years

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

Thanks for your feedback!

December 17, 2023

5.0

Dr. Mark Stolar listens to his patient and hears what they say. Not all in the medical field listen to their patients.

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

Thanks for your feedback!

December 12, 2023

5.0

Dr Stolar is an excellent doctor who takes the time to listen and understand my concerns. He also responds quickly to my questions.

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

Thanks for your feedback!

December 11, 2023

5.0

Dr. Stolar is Physican who cares and asks questions and you don't feel embarrassed asking him questions and he will give you his honest opinion

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

Thanks for your feedback!

December 07, 2023

5.0

He is so knowledgeable and always follows through

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

Thanks for your feedback!

December 06, 2023

5.0

Phenomenal internist AND human being. Has taken care of both my husband and myself for almost 40 years. We'd follow him anywhere.

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

Thanks for your feedback!

December 04, 2023

5.0

Dr Stolar always takes his time with me and listens to my concerns. He is the best doctor I have ever been to. His staff is very communicative and speedy with response. Everyone is so friendly and nice.

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

Thanks for your feedback!

December 03, 2023

5.0

Like Tina Turner said, he’s simply the best

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

Thanks for your feedback!

December 02, 2023

5.0

He was relaxed, professional, allowed me to complete my list of questions and concerns. Explained his opinions in detail, then answer my follow-up questions. Assessed my current health challenges, then give me a detailed path forward.

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

Thanks for your feedback!

December 02, 2023

5.0

Bright, professional , does not recommend unnecessary tests or meds

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

Thanks for your feedback!

December 02, 2023

5.0

Caring, thorough, professional and an excellent Doctor.

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

Thanks for your feedback!

November 29, 2023

5.0

Simply put, he is the best.

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

Thanks for your feedback!

November 28, 2023

5.0

He’s been my MD for over 35 years.

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

Thanks for your feedback!

November 28, 2023

5.0

I’ve always felt Dr Stolar takes the time to understand my issues to help come up with an appropriate treatment plan when needed. I also find him to be responsive when I reach out via MyChart.

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

Thanks for your feedback!

November 28, 2023

5.0

Dr. Stolar gives his undivided attention to me as a patient and this is greatly appreciated.

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

Thanks for your feedback!

November 24, 2023

5.0

Has been my doctor for years, I feel comfortable with him & trust him.

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

Thanks for your feedback!

November 24, 2023

5.0

Dr. Stolar is an amazing physician. He is knowledgeable. Takes his time with is patients. I feel he listens to my concerns and addresses my needs. He is kind and empathetic. He is always on-time for appointments. I value his expertise and trust his medical experience and guidance.

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

Thanks for your feedback!

November 24, 2023

5.0

Efficient and caring

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

Thanks for your feedback!

November 23, 2023

5.0

Dr. Stolar is very caring, compassionate, and knowledgeable.

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

Thanks for your feedback!

November 21, 2023

5.0

I would recommend Dr Stolar to anyone. He has been my doctor for 30 years. Very knowledgeable, concerned about the person, efficient, friendly.

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

Thanks for your feedback!

November 20, 2023

5.0

Because Dr stolar is a very caring smart man that care about his patients.

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

Thanks for your feedback!

November 20, 2023

1.0

Hes a great DR , and I dont want to share him.

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

Thanks for your feedback!

November 20, 2023

5.0

He treats the whole patient.

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

Thanks for your feedback!

November 19, 2023

5.0

He is the Best

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

Thanks for your feedback!

November 14, 2023

5.0

Dr. Stolar has gone above and beyond every time I’ve seen him. Healthcare as it should be.

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

Thanks for your feedback!
View more reviews

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.

View More Disclosures