Measles Information

Practice Focus Areas

This medical professional has a particular interest or expertise in:

Adult Medicine
Bone Health
Diabetes
Men's Health
Osteoporosis

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

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Practice Groups and Affiliations

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

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

1797 Ratings

Reviews from Patients

99 Reviews

Reviews from Patients

99 Reviews

April 26, 2025

5.0

He thorough and has the Best bedside manor ever.

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April 26, 2025

5.0

Excellent care. Always listens to me. I drive 71 miles each way for an appointment with him. Worth every mile and more. He is so knowledgeable and caring. Never feel rushed.

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April 25, 2025

5.0

Actually, I would rate him not at 10, but at 20. The doc is an unassuming superstar.

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April 25, 2025

5.0

He's the best. Explains everything and understands my concerns.

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April 23, 2025

5.0

Dr. Stolar has been my doctor for decades and has been reliably excellent the entire time. Good advice. Good listener.

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April 23, 2025

5.0

My GP since 1995, he provides the finest care.

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April 22, 2025

5.0

Efficient, thorough, personable.

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April 22, 2025

5.0

Dr stolar is brilliant

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April 19, 2025

5.0

Doctor provides great care. Really knows us as patients and people. Very responsive to messages in MyNM. Great "bedside manner".

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April 19, 2025

5.0

He is very knowledgeable and is personable.

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April 18, 2025

5.0

Dr.Stolar is a caring doctor who listens and gives fabulous healthcare.

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April 16, 2025

5.0

I feel well cared for and in the best hands for my care.

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April 11, 2025

5.0

In a word it's because he cares. Dr Stolar has been my primary for many years and I trust him completely. He's able to explain his diagnosis and recommendations so that I have a clear picture of my health status.

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April 11, 2025

5.0

Great doctor

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April 11, 2025

5.0

Best and very personalized care. He's been my doctor for over 20 years. Love him. Couldn't ask for a better care.

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April 10, 2025

5.0

He's a great diagnostician and a very kind man.

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April 08, 2025

5.0

I've enjoyed all 30+ years of Dr Stolar as my PCP. He has always had my best interests at heart.

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April 03, 2025

5.0

He's been my Dr for 20 yrs and I will not change

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April 02, 2025

5.0

I have been going to him for 38 years. He is the best!

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April 02, 2025

5.0

Experienced, old school physician who knows how to take care of a patient.

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March 29, 2025

5.0

See above. Dr Stolar is the best. I have the utmost respect for him. He cares for patients at the highest of levels. He is so knowledgeable, smart, professional, etc/. He provides excellent care.

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March 24, 2025

5.0

Mark Stolar has been my primary care doctor for over 35 years. He's always taken great care of me, he's skilled and knowledgeable, great bedside manner too.

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March 22, 2025

5.0

He is a brilliant diagnostician and he thorough

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March 21, 2025

5.0

His knowledge, he listens to the patient, and develops a.pla. for the specific patient, not a cookie cutter plan

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March 20, 2025

5.0

As above...been my doc for 30plus years

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March 18, 2025

4.0

He is an amazing doctor but since moving to Woodstock I don't know if people I know would travel an hour to see him.

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March 18, 2025

5.0

He is a very good doctor that takes time when he talks to you and ask you questions he don't rush you like some doctor does he really cares about you as a patient?

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March 18, 2025

5.0

Exceptional. He's always on top of things and responds immediately. Listens to concerns.

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March 13, 2025

5.0

Because I have gone to Dr. Stolar for so many years, if I lived near his current office I would definitely recommend him to others.

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March 10, 2025

5.0

Dr. Stolar is the best primary care physician I have ever had.

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February 28, 2025

5.0

He is professional, thorough, caring, engaged in my care...simply the best!

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February 26, 2025

5.0

Dr Stolar is the finest doctor on the planet. He is kind, compassionate, smart as a whip. He can diagnose anything. Rock star.

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February 25, 2025

5.0

He's been my doctor for over 30 years. And whenever I needed medical services- he's been 10/10.

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February 25, 2025

5.0

He is an excellent doctor informing his patients for procedures.

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February 22, 2025

5.0

Mark Stolar's skill.

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February 21, 2025

5.0

Dr. Stolar is outstanding.

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February 04, 2025

5.0

Excellent knowledge and communication. I don't feel rushed.

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February 04, 2025

5.0

He is a very caring Doctor. I feel I get the best care.

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February 01, 2025

5.0

The doctor is attentive, skilled and explains diagnosis, from the examination, in a practical and understandable manner.

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January 21, 2025

5.0

took his time listened well thorough

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January 12, 2025

5.0

Skilled, relatable, I am pleased to be in his care.

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January 10, 2025

5.0

Also have complete trust in his knowledge.

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January 07, 2025

5.0

PCP for three decades, smart, knowledgeable and interactive

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January 07, 2025

5.0

His intuition, care and concern is unmatched in today's world.

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December 24, 2024

5.0

A great diagnostician and doctor.

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December 19, 2024

5.0

Medical expertise, excellent listener, takes long view on my healthcare

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December 13, 2024

5.0

Absolutely the best MD ever!!!

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December 10, 2024

5.0

EXTREMELY KNOWLEDGEABLE,CARING, GREAT LISTENING SKILLS-- POSITIVE RESULTS DRIVEN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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December 09, 2024

5.0

The entire staff from the receptionist to Dr Stolar are very nice, professional and caring of my issues and time.

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December 07, 2024

5.0

He's caring, friendly, responds quickly to questions. Generally-he's the BEST!

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December 06, 2024

5.0

He is empathetic and takes the time to listen. Very good doctor.

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December 04, 2024

5.0

Dr. Stolar is a extremely professional, knowledgeable, caring doctor.

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December 03, 2024

5.0

Dr. Stolar gives his undivided attention to me. As a patient, the care that is provided demonstrates I am a person and not just another number. Exceptional patient care is greatly appreciated.

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November 27, 2024

5.0

Dr Mark Stolar is a credit to his profession. He is the best doctor I've ever had.

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November 22, 2024

5.0

Dr. Stolar is very knowledgeable and thorough. On top of that, he is a good listener and sees the whole patient.

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November 19, 2024

5.0

Dr. Mark Stolar has been my primary GP since I was 32 yrs old...(I'm now 75). I feel great rapport with him

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November 18, 2024

5.0

Mark is an amazing Doctor. His care and advice has been stellar for many years. Appreciate him

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November 16, 2024

5.0

Has been my doctor for years and I trust him.

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November 13, 2024

5.0

37 years of high quality care from Dr. Stolar

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November 11, 2024

5.0

Dr. Stolar is excellent at his profession! He is laid-back and easy to communicate with. In addition to Internal Medicine, he specializes in Endocrinology, Diabetes, and Metabolism. When I was diagnosed with Type 2 Diabetes a few years ago, I knew I was in capable hands.

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November 11, 2024

5.0

Dr STOLAR is the best of the best & I'd follow him through the ends of the earth. Treats you with respect, understanding, his peer....i can go on & on!!!!!

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November 07, 2024

5.0

There is no better internist than Dr. Stolar. He truly cares and never rushes you out. I'm 100% confident in his knowledge/skill and expertise. He's what the medical profession used to be. I can't say enough good things about him!

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November 05, 2024

5.0

Dr stolar listens. He really listens. Cutting edge treatment. He makes me relax. I trust him

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November 01, 2024

5.0

Knowledgeable, practical and informative

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October 31, 2024

5.0

he is excellent

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October 30, 2024

5.0

Dr Stolar is the head. I travel from the city to Woodstock to see him.

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October 28, 2024

5.0

Kind, knowledgeable, helpful, and very timely in his responses. He's the best.

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October 26, 2024

5.0

Dr stolar is very knowledgeable and understands me as a patient

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October 25, 2024

5.0

Great Dr for many years

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October 23, 2024

5.0

He been my doctor for 30 years.

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October 21, 2024

5.0

A better doctor has never been born. Dr. Stolar has seen me since he was new to NW. He has always been the kind of doctor patients adore. He is thorough but never over tests; he is knowledgeable but quick to refer to specialized care when it is needed; he has superb judgement. Rarest of all? The man has a sense of humor.

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October 18, 2024

5.0

Great doctor, great bedside manner

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October 13, 2024

5.0

I've been his patient for many years. He is the best of the best

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October 12, 2024

5.0

Has been my internist for decades. Always provides options, information and clear discussion. The best doctor I have come across in my 71 years! Professional, competent and respectful.

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October 08, 2024

5.0

I have been a patient of NW Primary Care and Dr. Mark Stolar for nearly 30 years and have received excellent care. I would go nowhere else. Dr. Stolar is the very best physician. He is professional yet friendly, extremely knowledgeable. He takes time to listen and review records. He is responsive and remembers my health concerns. Dr. Stolar is unsurpassed and I have full confidence in him.

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October 04, 2024

5.0

I've been fortunate to have Dr. Stolar for a number of years. He has seen me through uterine fibroids, thyroid issues, and brain cancer. He is always positive, knowledgeable, and comforting. Also, he takes the time to listen about my concerns and gives me answers that are constructive and helpful.

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October 02, 2024

5.0

I can't imagine any provider being better at his job. I used to drive two hours to see him, that is how good he is.

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October 02, 2024

5.0

Dr. Stolar is an amazing physician. I never feel rushed...he is both efficient and comprehensive with his exams. He is very kind and compassionate, and obviously very knowledgeable. I feel that he always addresses my health concerns. He has a very logical, holistic approach to care, despite my difficult medical history.

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October 01, 2024

5.0

He is a terrific patient advocate, his follow up after I have medical tests is outstanding and exceptional. I feel safe with him

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September 27, 2024

5.0

Dr. Stolar is an experienced well versed clinician that communicates extremely effectively. He is one of the best doctors I have ever dealt with

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September 26, 2024

5.0

Hes the Man

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September 24, 2024

5.0

He is a great doctor very knowledgeable.

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September 24, 2024

5.0

He is responsive, caring, smart and an advocate for my health care.

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September 23, 2024

5.0

I'm not sure many of my friends and acquaintances would drive that far for a new PCP, but Dr. Stolar is the best of the best and the most caring doctor I have had.

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September 21, 2024

5.0

Dr. Stolar is a wonderful physician and a great diagnostician. I have been a patient of his for 30 years. He listens to your questions carefully and will suggest various solutions. I feel as though I am a partner with him in taking control of my health.

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September 18, 2024

5.0

He is very thorough and takes the time to answer all questions and concerns. And he is just a nice guy!

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September 17, 2024

5.0

He is the best doctor- also runs on time

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September 16, 2024

5.0

Have been going to Dr. STOLAR for the past 22 years. He is personable and highly competent. He answers MyChart messages within an hour on same day. He is the best diagnostician I have ever had. I highly recommend him to all. Can't imagine going to another doctor!

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September 14, 2024

5.0

mark is the best

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September 14, 2024

5.0

Dr. Stolar has been my PCP for more than 40 years. He sincerely cares and works with his patients to meet their healthcare needs.

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September 13, 2024

5.0

Dr. Stolar seems very genuine and sincere.

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September 12, 2024

5.0

Dr stolar is a great doctor..very thoughtful and thorough and always helpful with our questions. Highly recommend him

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September 11, 2024

5.0

Listens, experienced and professional!

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September 10, 2024

5.0

Very comfortable with doctors.

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September 10, 2024

5.0

Dr. Stolar is outstanding physician. He is a very knowledgeable and capable diagnostician, and an excellent listener with an outstanding "bedside manner."

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September 04, 2024

5.0

Very prompt service. And Dr Stolar takes time with you and addresses your questions and needs. Doesn't rush you out

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September 04, 2024

5.0

He cares about us and offers suggestions and feedback in a way that we can understand. Trust is important.

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September 03, 2024

5.0

He is thorough and friendly and knowledgeable. I cant say enough about him because hes the only Thyroid doctor who ever helped me feel better and lose weight. He really saved my life. I drive 2 hours for our appointment so that says hes worth the drive.

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September 03, 2024

5.0

I think he's the best available!

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Disclosures

Board of Directors

Faculty member and/or their immediate family 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.

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