Patient Favorite Award

Dr. Mark Stolar, MD

Internal Medicine*•Male•Age 71

Internal Medicine*

Dr. Mark Stolar, MD is an internist in McHenry, IL and has over 45 years of experience in the medical field. Dr. Stolar has extensive experience in Osteoporosis & Screening and Thyroid Disorders. He graduated from University of Illinois College of Medicine in 1979. He is affiliated with medical facilities such as Northwestern Medicine Huntley Hospital and Northwestern Medicine Lake Forest Hospital. He is accepting new patients and telehealth appointments.

Patient Favorite Award
Dr. Mark Stolar, MD

Cleveland Clinic Akron

2507 N Richmond Rd Ste A McHenry, IL 60051
Telehealth availableTelehealth services available
(815) 344-2300
Telehealth availableTelehealth services available
|

Accepting new patients

(815) 344-2300
Patient Favorite Award

Dr. Stolar is a patient favorite Internist

The Patient Favorite badge is awarded to top-performing providers who surpass average ratings and comments, reflecting their commitment to exceptional patient care. Read our methodology

  • Areas of Expertise
    Dr. Stolar specializes in the areas of Diabetes, Metabolism & Endocrinology & Internal Medicine. • See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 100 Best Hospitals Award™ • See hospitals

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Dr. Stolar's Reviews

Likelihood to recommend Dr. Stolar

4.8
48 ratings, 15 with a written review
5 star
94%
94%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
6%
6%

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My physician for decades. He is simply the best, has always made me feel comfortable and confident in his decisions. One can not receive better care.
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Jan 16, 2024
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Excellent, Above and Beyond Service, Professional
Telehealth
I am a patient of Dr. Stolar for over 20 years plus. He is an expert in his treatment of Hashimoto's Thyroid disease. In addition, he is an excellent internist. The professionalism and genuine kindness demonstrated by Dr. and staff are above and beyond and most important, consistent over the years. The Dr. is an active listener and addresses concerns fully. He is patient and makes every attempt to help one feel comfortable with their treatment plan. The staff respond promptly to inquiries and test results. I cannot express the gratitude that I have for this physician and his willingness to serve patients.
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Jan 11, 2024
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He's been my doctor for 15 years. He's amazing. Never met a doctor so knowledgeable.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
2 others found this helpful
Helpful
Julie V – Oct 22, 2021
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Dr. Stolar is an EXCELLENT physician. He was located downtown Chicago and we followed him to McHenry. That says everything right there.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Adalynn – Sep 15, 2021
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Dr Stolar is the best. Has been our doctor for over 30 years. Extremely knowledgeable, caring, listens to his patients and takes time to get you the right treatment or specialist (if needed). Very dedicated to his work and patients. We followed him to McHenry plus we moved to Florida. We are coming back up north to see him in August for our 6 month follow up - that's how much respect and trust my husband and I have for him. Will be a sad day for us when Dr Stolar retires, but will be happy for him when he decides to.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Debbie Riggio – Jun 08, 2021
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Dr Stolar, my doctor of 23 years, is the smartest, most caring and efficient doctor I’ve seen. Always on time if not early, listens to you and your problems and his advice is spot on and sometimes not at all what you may have thought. Simply the best!
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 other person found this helpful
Helpful
Robert Lee – Apr 18, 2021
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Dr. Stolar is a fantastic, dedicated and thoughtful doctor. When you’re with him you know he’s listening for the bigger picture and the important details. Highly recommend. A patient couldn’t do better!
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
Mara in Chicago, IL – Oct 06, 2017
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Dr Stolar is a great listener which then leverages into his ability to provide the best care possible. He works with his patients to assess how to administer care. For instance, if the person wants to avoid a pharm solution, he will help find another alternative where possible. He is very trustworthy.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Rebecca in Chicago – Apr 18, 2017
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I highly recommend Dr. Stolar to anyone with endocrine issues (e.g., thyroid, diabetes, hormones). He is knowledgeable and compassionate and he treats the whole person. He's been my physician for 16 years and he's the only doctor who has ever made me feel better as a result of seeing him.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
6 others found this helpful
Helpful
Chicago, IL – Jan 05, 2017
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Really understands the psychology behind being diabetic. Gives good advice that is actually applicable to real life as a diabetic. Does not berate you for having high numbers, instead works with you to make lifestyle changes. Gets very excited for you when your numbers improve. Definitely an "above and beyond" doctor.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
5 others found this helpful
Helpful
David H in Chicago, IL – Nov 17, 2016
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Dr. Stolar considers my time restraints and ALWAYS fits me in to his schedule when I am ill. He is extremely knowledgeable and always knows the answers to my symptoms OR refers me to a specialist out of his field. Most importantly, he doesn't have his hand on the door knob when I am in his care. He LISTENS to why I am there and thoroughly treats my symptoms. He has a wonderful bedside manor & I give Dr. Stolar the highest recommendation.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
7 others found this helpful
Helpful
Peggy Marciniak in Chicago, IL – Aug 22, 2016
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Pleasant, aasy to speak to, attentive, thoughtful in his responses, considerate of patient perspective, asks a lot of questions to get down to the root of the problem, no unnecessary procedures/tests
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
4 others found this helpful
Helpful
J Buchband in Glenview, IL – Feb 23, 2016
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I have been going to Dr. Stolar for about 15 years and I have always received excellent care. The practice is very busy but Dr. Stolar always takes time to listen to what you tell him and take everything into consideration. He is an easy doctor to talk to which is a rare thing these days.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
5 others found this helpful
Helpful
Chicago, IL – Feb 01, 2016
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He has been my primary care physician for 30 years! He is an excellent physician, thorough in physical assessment, listens carefully to his patients and makes a plan to fit them.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Kathleen Fitzgerald in Chicago, IL – Jan 10, 2016
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Dr Stolar is very knowledgeable but he is also willing to listen to you and work out a treatment plan that's realistic. I love that he has a great sense of humor and doesn't rush through the visit.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 others found this helpful
Helpful
Kathleen Boylan in chicago, il – Dec 31, 2015
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Know Before You Go

About Me

care philosophy

``Better people means better experiences. Our care team is committed to delivering results that change lives.`` 

  • Internal Medicine

  • Endocrinology, Diabetes & Metabolism

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Mcgaw Medical Center Of Northwestern University|northwestern Memorial Hospital

    Fellowship Hospital, 1984

  • Advocate Lutheran General Hospital|luth General Hospital

    Residency Hospital, 1982

  • University Of Illinois College Of Medicine

    Medical School, 1979
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Diabetes, Metabolism & Endocrinology
- 
Internal Medicine
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

Learn more about medical license public record check
Patient Favorite Award

Dr. Stolar is a patient favorite Internist

    Read our methodology

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    Locations

    Cleveland Clinic Akron

    Northwestern Medicine Regional Medical Group2507 N Richmond Rd Ste A McHenry, IL 60051
    1

    Northwestern Medical Group

    Northwestern Internists LTD676 N Saint Clair St Ste 415 Chicago, IL 60611
    2

    Affiliated Hospitals

    • Northwestern Medicine Huntley Hospital

      10400 Haligus Rd
      Huntley, IL 60142
      Recipient of 8
      hospital awards

      America's 100 Best Hospitals Award™ (2025)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      America's 250 Best Hospitals Award™ (2025, 2024)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

    • Northwestern Medicine Lake Forest Hospital

      1000 N Westmoreland Rd
      Lake Forest, IL 60045
      Recipient of 13
      hospital awards

      America's 250 Best Hospitals Award™ (2025, 2024, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      Patient Safety Excellence Award™ (2025, 2024)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

      How patients felt about the care they received at this hospital.

      88%
      Patients said they were given information about recovering at home

      4% higher than the national average

      80%
      Patients said that doctors always listened to them and explained things well

      4% higher than the national average

      View all patient feedback

    • Northwestern Medicine McHenry Hospital

      4201 W Medical Center Dr
      McHenry, IL 60050
      Recipient of 33
      hospital awards

      America's 100 Best Hospitals Award™ (2025)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      America's 250 Best Hospitals Award™ (2025, 2024, 2023)

      Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

      View all awards

      How patients felt about the care they received at this hospital.

      88%
      Patients said they were given information about recovering at home

      4% higher than the national average

      79%
      Patients said that nurses always listened to them and explained things well

      4% higher than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality