About Bob Sun, MD
Bob H. Sun, MD, a rheumatologist at Endeavor Health, provides care for autoimmune and inflammatory conditions affecting the joints and connective tissues. His clinical expertise includes rheumatoid arthritis, osteoarthritis, ankylosing spondylitis and crystalline arthropathies. Dr. Sun offers comprehensive evaluations and evidence-based treatment to help reduce pain and support joint function.
Overview
- Gender Male
Conditions treated (12)
- Rheumatoid arthritis
- Ankylosing spondylitis
- Systemic connective tissue disease
- Psoriatic arthritis
- Gout
- Osteoarthritis
- Vasculitis
- Pseudogout
- Crystalline arthropathies
- Systemic lupus erythematosus
- Polymyalgia rheumatica
- Inflammatory myopathy
Procedures performed (1)
- General rheumatology
Endeavor Health Medical Group
1000 Central St., Suite 800
Evanston, IL 60201-1780
Evanston, IL 60201-1780
Endeavor Health Medical Group
225 N. Milwaukee Ave., Lower Level
Vernon Hills, IL 60061-4304
Vernon Hills, IL 60061-4304
Medical School
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2001University of Miami School of Medicine
Residencies
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2004Internal MedicineUniversity of Texas Health Sciences Center
Fellowships
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2007RheumatologyUniversity of California at San Diego
Board certifications
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2005Internal MedicineAmerican Board of Internal Medicine
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2007RheumatologyAmerican Board of Internal Medicine
Reviews (204)
March 20, 2026
He listened to my concerns. On my reluctance to accept a drug recommendation, he did not force the issue. That one tract was much appreciatedfrom the patient's side of the discussion.
March 20, 2026
Dr Sun is thorough and answer all my questions. I trust him 100% with my orthopedic health.
March 17, 2026
Dr Sun is an outstanding doctor.
March 17, 2026
Dr. Sun has been my doctor for over 2 years and my husbands doctor for approximately 15 years. Dr. Sun really listens and answers questions. He is concerned about my well being and how to best care for me during the ups and downs of the autoimmune disease I have. I am thankful I have Dr. Sun as my doctor.
March 14, 2026
Excellent.
March 13, 2026
Always very professional
March 13, 2026
Dr. Bob Sun, He is very kind and check up Detail
March 7, 2026
Dr Sun is a very caring, kind man who listens to my concerns and then addresses them. I have full confidence in him and high hopes of finding relief from my arthritic pain.
March 3, 2026
I continue to be very satisfied with Dr Sun's professionalism and expertise. Also very satisfied with the entire staff. Thank you
February 27, 2026
Bob Sun and his.staff are very good at making sure are taking care of their patients
February 26, 2026
Dr Sun responds so very quickly to follow texts.He really makes me feel I am his only patient
February 24, 2026
Very caring and thorough.
February 24, 2026
I'm truly thankful that Dr. Sun is my rheumatologist!!! Mine is not a normal case, and he is always so clear, detailed, kind, forthcoming and encouraging.
February 21, 2026
Always the best
February 20, 2026
The physicians and the care team are excellent in providing diagnostics and treatment.
February 20, 2026
Dr. Sun is responsive, attentive and thorough. I feel very fortunate to have him as my rheumatologist.
February 20, 2026
Top rate MD
February 18, 2026
Dr Sun is easy to talk to and answered all my questions and concerns.
February 17, 2026
I'm always confident that Dr. Sun listens to me and provides excellent care.
February 16, 2026
Dr. Sun is an excellent physician and is very personable.
February 15, 2026
Dr. Sun and his staff were very courteous and professional
February 11, 2026
Very pleasant experience as this was my first appointment with Dr. Sun
February 5, 2026
Always outstanding!
February 5, 2026
Dr sun is attentive and personable. Great bedside manners
February 5, 2026
Dr. Sun is the best. Very thorough. Covers everything and answers all questions I may have.
February 3, 2026
He is great.
January 30, 2026
I love think he's a good doctor! I would and have recommended him!!
January 28, 2026
Dr. Sun and his staff are very professional and congenial. He is very thoughtful and conscientious.
January 25, 2026
Dr. Sun is always vigilant about my blood tests and necessary follow-up.
January 21, 2026
Dr. Sun has improved the quality of my life.
January 21, 2026
Dr. Sun is a competent, caring physician whom I'd recommend to any rheumatology patient.
January 20, 2026
I always get in quickly. The staff is wonderful and the dr explains everything thoroughly
January 19, 2026
I'm so thankful for Dr. Sun. He's such an exceptional doctor! I would definitely recommend him to others.
January 17, 2026
Would recommend to others
January 16, 2026
Dr. Sun has been a huge part of my team and has been integral to getting the health care I needed.
January 15, 2026
Excellent care!
January 14, 2026
Very professional and concerned
January 9, 2026
Dr. Sun is one of my favorite doctors! He's always efficient, caring, supportive and professional.
January 9, 2026
Excellent
January 9, 2026
Any pt would be fortunate to have Dr. Sun as his/her rheumatologist. He is so respectful, thoughtful, collaborative..
December 27, 2025
Very satisfied with Dr.
December 21, 2025
Dr. Bob Sun has always been a very passionate care provide who has my best health in mind.
December 20, 2025
Great!
December 19, 2025
Dr. Sun does an excellent job at working with me to monitor my situation through follow up appointments. I have a lot of pain issues with various joints that are helped with some medications, but not something that comes with another bad side effect.
December 18, 2025
As usual, excellent care.
December 16, 2025
Dr. Sun is the best! He was helpful with my mom and now, for me, he figured out my problem and fixed it!
December 16, 2025
Super nice and kind and caring
December 10, 2025
I've been seeing this Dr. Sun for many years, and his consistent attention to detail, genuine kindness, and friendly manner continue to stand out at every visit. I truly appreciate the exceptional care he provides and feel grateful to have him as my physician.
December 9, 2025
Dr. Sun is the best Dr. Just a great Dr
December 9, 2025
Excellent service line always
December 7, 2025
My provider is a great doctor.
December 4, 2025
Dr Sun is always attentive and kind. Addresses all questions.
December 4, 2025
Dr. Sun is wonderful. He listens intently to patient concerns and responds appropriately with great understanding and sensitivity.
December 3, 2025
Doctor Sun is an excellent physician very professional and knowledgeable
December 2, 2025
I've know Dr Sun for many years now and He is an asset to Endeavor. Takes the time to answer all my questions, explains options if course of treatment necessary and is thorough. Responds to questions on NorthShore connect timely and in detail. Very kind and polite and looks you in the eye when speaking to you. Not all doctors do those things.
December 2, 2025
Dr Sun has been my physician now for almost 20 years, and has proven to be an engaged, thoughtful, fully informed and gifted physician in all respects.
November 19, 2025
Dr Sun has always provided the upmost care possible for me. He always seems concerned about my health and wants me to feel good and be healthy in every aspect of my life. He truly seems to care about his patients and does not want them to be in pain. He asks questions about my general health as well as the reason I came in that day.
November 19, 2025
Dr. Sun is very easy to talk to and very caring. He's friendly and supportive of my needs.
November 18, 2025
My concerns are addressed and I feel very confident I was heard and understood. Always enjoy my appointments with Dr. Sun and his staff.
November 14, 2025
Dr. Sun is an excellent doctor. He always takes the time to listen and answer all of my questions. He is polite and knowledgeable and treats me with respect.
November 12, 2025
I feel so fortunate to be under the care of Dr. Sun. He is so knowledgeable and responsive. He took time to help me understand everything that would transpire from diagnosis to treatment plan. I have felt very little anxiety and I attribute that to Dr. Sun and everyone I have been treated by.
November 11, 2025
Excellent and caring physician. Listens very well.
November 8, 2025
Dr. Sun is extremely knowledgeable about General Medicine as well as his Rheumatology specialty. He emphasizes information on rare, potential side effects in order to fully inform his patients.
November 7, 2025
I have worked with Dr. Sun for more than 8 years. He is always thorough, attentive and responsive.I am very grateful to be under his care.
November 2, 2025
Dr Sun is THE BEST!!!!! I have referred him to family and friends and feel confident with him as my doctor.
November 1, 2025
Great
October 31, 2025
I was disappointed that the visit was so short
October 31, 2025
Dr. Sun is fantastic!
October 30, 2025
Dr. Sun always listens carefully and explains any problems or recommendations.
October 25, 2025
Dr Sun is always looking out for me and helps me understand what his goal is to getting me feeling better.
October 24, 2025
Great, Dr and Staff
October 23, 2025
Excellent physician
October 21, 2025
Dr Sun is very easy to talk to and explains options clearly. I am glad to be his patient
October 21, 2025
Dr. Sun is the best!
October 13, 2025
I'm always very pleased with scheduling appointments and doctor taking my concerns seriously.
October 12, 2025
Professional, knowledgeable, kind
October 10, 2025
Dr. Sun is so good it's almost worth the scheduling problems and a wait in the outer office in order to see him
October 9, 2025
Dr. Sun's care is the BEST!He communicates,explains, & provides information for my well being
October 7, 2025
I feel I am in good hands.
October 7, 2025
The experience has always been good.
October 5, 2025
Dr. Sun is awesome. He's a good listener, and is one of my favorite doctors.
September 23, 2025
Dr. Sun is always thorough and open to questions. He asks for my input when considering a change in medication regimen. Dr. Sun is thoughtful and shows an interest in me as both a patient and person.
September 22, 2025
Good advise
September 19, 2025
Very knowledgeable and caring.
September 17, 2025
Dr Sun, genuine care and interest in my well-being.
September 16, 2025
Xray tech was excellent. Friendly and professional. Dr Sun very easy to communicate with. Very with entire experience.
September 13, 2025
I received excellent care
September 13, 2025
Dr. Sun is. breath of fresh air. You can tell he wants you to get better.
September 10, 2025
Very informative and friendly.
September 7, 2025
Very kind polite and knowledgeable - will refer him to others!
August 28, 2025
Excellent!
August 27, 2025
Dr. Sun is great!
August 26, 2025
I continue to be extremely Impressed with Dr Sun's expertise, professionalism, and compassion. His caring personality and likability make him exceptionally well suited for his profession. He is a strong asset for Endeavor Health.
August 26, 2025
Dr Sun consistently shows that he cares about his patients and contributes towards a positive health outcome.
August 21, 2025
Very thorough
August 16, 2025
I appreciate the care provided and that I feel like a person and not like a subject
August 14, 2025
Dr. Sun is great.
August 14, 2025
I always receive excellent care from Dr Sun. He is a caring person gets back to me with a response to a question right away.
August 12, 2025
He was amazing. He took the time to explain everything. He asked if I had any questions. He didn't just rush me out. Actually made me feel like there was hope.
August 9, 2025
Dr. Sun is great. He is easy to work with, listens to your concerns and gives his patients the time they need to answer all their questions.
August 6, 2025
Dr. Sun is a keeper and an asset to your team!!
August 6, 2025
Dr. Sun is the best! The nurses and everyone are fantastic! Kind and caring.
August 4, 2025
Dr. Sun always makes me feel very comfortable and I feel that he does a fine job monitoring my osteoarthritis.
August 2, 2025
I could go on all day about how much I love and respect my doctors! Dr. Sun called ME in when a little lightbulb went off in his head that my problems could be a genetic problem, not autoimmune! He's brilliant and treats me like a human. He sincerely wants to help his patients!
August 2, 2025
Excellent physician
July 30, 2025
Dr., CNA's and staff were pleasant, efficient and professional!
July 27, 2025
Dr Sun is extremely thorough and compassionate; he gives 200% of himself !
July 26, 2025
DR. Sun is amazing and kind.
July 26, 2025
Dr Sun is one of the most intelligent and empathic physicians I have ever had the good fortune to contribute to my overall health.
July 25, 2025
Dr. Sun always makes me feel at ease and well cared for. I appreciate his expertise.
July 25, 2025
Dr Sun exceeded all expectations: great listener, diagnostician with keen insights and clarity regarding next steps and follow up. I feel fortunate to be a patient of Dr. Sun.
July 25, 2025
My provider is wonderful
July 21, 2025
Dr. Bob Sun is a care and compassionate doctor. I'm so glad my Oncologist recommendeded me to him. I would definitely recommend him to others 100%.
July 12, 2025
He listens to me and explains everything so I can understand! Him and his staff are always soo nice!
July 10, 2025
Dr. Sun is personable and knowledgeable and always on time!
July 4, 2025
Dr Sun listens and shows concern for me. I'm glad that I found him.
July 2, 2025
I appreciate Dr. Sun's relaxed manner and also his prompt attention to messages
July 1, 2025
The staff were very polite and answered all my question. I would recommend your services to anyone else.
June 28, 2025
He is very friendly and very loving person
June 27, 2025
Kind, caring, competent, good listener, an advocate for my health, professional
June 27, 2025
Bob is caring, knowledgeable, listen to me- I really feel he is my advocate.
June 24, 2025
Always thorough and listens well
June 24, 2025
Dr. Sun is awesome. He treats his patients with kindness, respect and takes his time listening to you and looks you in the eye when he speaks to you.
June 20, 2025
Dr. Sun was extremely thorough and took the time to answer all of my questions.
June 19, 2025
Excellent
June 19, 2025
Dr Sun is wonderful.
June 13, 2025
Dr. Sun is excellent. He is thorough and communicates in a timely manner with any post visit testing. He has a great personality and I am confident that I am being well cared for.
June 13, 2025
Dr. Sun Is a very caring physician and takes time to discuss situations pertaining to his patients
June 12, 2025
Dr. Sun has always been a fantastic care provider!
June 11, 2025
Great practice
June 10, 2025
Sr Sun is the best. He really takes time and really listens. He shows empathy and humanity. So important and lacking in so many physicians unfortunately.
June 10, 2025
Dr. Sun is terrific. He is caring and kind and does an outstanding job of listening and responding to all of my concerns.
June 10, 2025
Excellent like always
June 10, 2025
Dr Sun and staff are great!
June 9, 2025
Dr Bob Sun is the best doctor I ever had.
June 5, 2025
Dr. Sun is very thorough, and the best in his field. Highly recommended.
June 4, 2025
Doctor Sun is an excellent Doctor. I always recommend him to anyone who needs a Rheumatologist
June 3, 2025
The best of his kind
June 2, 2025
Dr. Sun is personable, kind and thorough. I think he is a great doctor. He takes time to get to know you.
June 2, 2025
Dr Sun was kind polite attentive and helpful.
May 29, 2025
Friendly/ informative, personable, helpful, effective
May 22, 2025
Great job!
May 20, 2025
Wonderful friendly professional staff
May 17, 2025
Excellent doctor very understanding and thorough
May 14, 2025
Very knowledgeable and helpful. Always willing to listen and address my latest concerns.
May 13, 2025
Comprehensive
May 9, 2025
He's an excellent Physician.
May 8, 2025
Dr. Sun is the best. Very kind and responsive. I never feel rushed. He always answers my questions in a way I can understand. He works with me to provide the best care for my situation. He deserves 100 stars!
May 8, 2025
Dr Sun is the best.
May 6, 2025
Doctor Sun is amazing. I always feel like he gets to know you as a patient and really cares for you holistically. Can't say enough good things about him.
May 4, 2025
Excellent
May 3, 2025
I have seen Dr Sun for several years and would recommend him to others
May 1, 2025
Dr Sun listened carefully and expressed concern about my health. He did not make me feel rushed or that he was in a hurry. Excellent compassionate care and communication.
April 26, 2025
Doctor is an excellent doctor and a very compassionate person
April 24, 2025
My care teams are very knowledgeable and have good experience
April 24, 2025
Dr. Sun is excellent, very kind, attentive, good listener. Great bedside manners
April 24, 2025
Dr. Sun is very accomodating and attentive to my needs and concerns. He treats you like family! I'd recommend him to my friends and family!
April 23, 2025
Dr Sun is always very thorough and personable. My fave
April 22, 2025
Always prompt, thorough and understanding
April 22, 2025
I love my Endeavor team. They listen to my concerns and address them
April 20, 2025
Wonderful working with Dr. Sun on my care plan. He is both extremely knowledgeable and easy to talk to. Also his staff are always supportive and quickly address any issues. Couldn't be happier.
April 18, 2025
Dr Sun has always shown the utmost respect easy with whom to communicate and responsive!
April 18, 2025
Keep up the good work you are doing!
April 17, 2025
Dr. Sun is excellent-he listens and makes useful adjustments to my care. For someone treating a chronic disease like arthritis, he is just right.
April 16, 2025
Dr Sun takes the time to listen to any concerns that I may have regarding my care.
April 15, 2025
Dr Sun is always a very caring doctor. Have been a patient of his for a long time.
April 7, 2025
I have been seeing Dr. Sun for a good number of years and am pleased with the way he oversees treatment.
April 5, 2025
Dr Sun is an excellent doctor who is very caring.
April 1, 2025
Dr SUN is the best Dr. So helpful kind and smart..
April 1, 2025
Dr. Sun is a 5 star Doctor!
March 29, 2025
Professional,pleasant,and excellent communicator
March 26, 2025
Professional and pleasant.
March 21, 2025
Dr. Sun is an excellent physician. Listens. Questions. Concerned.
March 20, 2025
Very thorough and knowledgeable.
March 19, 2025
Caring, willing to answer questions
March 19, 2025
He is always kind, caring and shows that he has my best interests at heart.
March 19, 2025
Excellent appointment . All problems addressed. Very happy with Dr Sun and his assistant .
March 13, 2025
Dr Sun is totally concentrating on my appointment. Is knowledgeable, personable and Offered solutions, He asked good questions and it opened up an area I need to consider for future travel and the effects of a RX I'm taking for my RA. The FIRST doctor to bring this important subject up.
March 13, 2025
I trust him he's a wonderful doctor.
March 11, 2025
Appointment was on time. There were no delays.
February 28, 2025
I really like Dr. Sun. He's very thoughtful and wise.
February 27, 2025
Dr.. Sun is a great doctor that takes the right amount of time to monitor my issues and give me the best solutions possible without going overboard
February 25, 2025
Excellent!
February 25, 2025
I have been a patient for years now with Dr. Bob Sun and he always listens to my needs and if I'm in pain. Always friendly and clean environment. Staff is always friendly and helpful as well
February 25, 2025
Dr. Sun and his staff are always fantastic to work with
February 21, 2025
Bob Sun is the best- thorough, compassionate, efficient!
February 21, 2025
Always personable and interested to know how other aspects of my life may be impacted by my health situation.
February 21, 2025
Dr Sun is outstanding. Twice he has discovered early signs of which could have been deadly consequences. Since 2011 I've been his patient.
February 19, 2025
I continue to be very impressed by Dr Sun. His professionalism and compassion are outstanding.
February 18, 2025
Grate
February 18, 2025
Dr Bob Sun is amazing, knowledgeable, caring, and he truly listens to his parents!
February 6, 2025
Dr. Sun has been amazing. He made me feel very comfortable right from the very first appointment. He takes time to listen and explains things clearly. Highly recommended!!
February 6, 2025
Appreciate the longevity of care Dr Sun provides. He is kind, patient, and always very helpful
February 6, 2025
Have had Bob for going on 8 years now and he has helped me greatly. He's an excellent Dr. We get along like we are best friends.
February 1, 2025
Dr Sun and staff are amazing. Dr Sun always looks out for my wellbeing and health
January 31, 2025
Excellent doctor...great person
January 30, 2025
Always enjoy seeing Dr. Sun - he is caring and cordial.
January 30, 2025
He takes his time and explained everything that I can understand
January 23, 2025
Dr. Sun is excellent.
January 22, 2025
Dr. Sun makes me feel at ease. He is patient and understanding. He listens to my concerns and explains things in a way I can understand.
January 20, 2025
Dr Sun is an is an excellent care provider always a pleasure to attend his visits.
January 15, 2025
I think Dr Sun is an excellent doctor. He listens to his patients and wants to help them feel better. He is available through the portal and responds quickly.
January 13, 2025
Very good,
January 11, 2025
Dr Sun is a great Dr, his staff are fantastic!
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