Julia L. Sun, MD

4.9 
955 ratings  Read Reviews
Northwestern Medicine logoNorthwestern Medical Group

Primary Specialty

Rheumatology

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Practice Focus Areas

This medical professional has a particular interest or expertise in:

Education

Medical Education:
MD, Duke University School of Medicine - 2016
Residency:
University of Chicago - 2019
Fellowships:
McGaw Medical Center of Northwestern University - 2021

Languages Spoken

  • Mandarin Chinese

Board Certifications

  • American Board of Internal Medicine - Internal Medicine (Certified)
  • American Board of Internal Medicine/Rheumatology - Rheumatology (Certified)

Practice Groups and Affiliations

Medical Group:
Northwestern Medical Group
Alignment Category:
Northwestern Medicine Physician Network
On Medical Staff At:
Catherine Gratz Griffin Lake Forest Hospital

Ratings and Reviews

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Overall Rating

4.9
4.9 

955 Ratings

Reviews from Patients

88 Reviews

Reviews from Patients

88 Reviews

February 27, 2026

5.0

I'm very fortunate to have Dr. Sun as my Rheumatologist. She's compassionate, knowledgeable, and personable. Her expertise and passion reflects the medical attention she provides. Patiently listens to your needs and ensures that the end result exceeds expectations.

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February 22, 2026

5.0

Excellent doctor with great communication skills. You can tell she genuinely cares about you as a patient. I feel she is going to really help me.

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February 20, 2026

5.0

Dr Sun is warm, bright, medically driven with compassion. She also follows up quickly.

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February 19, 2026

5.0

She was very thorough and took time to explain and answer all my questions and concerns.

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February 17, 2026

5.0

She was very nice and polite and very knowledgeable

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February 14, 2026

5.0

Dr. Sun is very knowledgeable, listens well and is very kind. I highly recommend her!

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February 12, 2026

5.0

Good service

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February 04, 2026

4.0

Knowledgeable, caring, intelligent, Thorough and listens

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February 04, 2026

5.0

Dr Sun's knowledge and ability to explain my test results was nothing short of excellent

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February 04, 2026

5.0

Great Care

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February 04, 2026

5.0

Best & dedicated doctor.

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February 02, 2026

5.0

Dr. Sun has always been great.

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January 30, 2026

5.0

explained everything including step by step treatment options.

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January 26, 2026

5.0

The BEST.

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January 21, 2026

5.0

She is extremely caring and shows concern for your well being.

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January 20, 2026

5.0

Dr, Sun is always patient and takes her time to answer and address your concerns.

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January 15, 2026

5.0

I believe she is knowledgeable to what is she doing. Very nice Dr.She accommodates my retired MD brother-in-law & my sister on the phone. She examined me thoughtly.

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January 14, 2026

5.0

She takes time to listen ,Friendly .Approachable

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January 13, 2026

5.0

Dr Julia Sun is one of the best doctors I have dealt with. Her bedside manner is top notch. She really cares about finding your issues and trying to fix them. My issue in the end have nothing to do with rheumatology and she took the time to explain to me things that sever specific doctors have never tried to cover. I truly think this is one of the absolute best doctors I have ever experienced.

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January 12, 2026

5.0

Dr. Sun is an outstanding physician. She thoughtfully analyzes test data, examines physical symptoms, and asks clarifying questions while listening closely to responses. Her thoroughness led to a more accurate diagnosis and plan of treatment. I'm thankful for her diligence and care.

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January 11, 2026

5.0

I think she's a great doctor and I've seen her previously for a potential autoimmune issue. I just think she's super busy and didn't have time to look at my record beforehand to see why I was coming. I feel like we raced both of each other's time.

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January 07, 2026

5.0

Knowledgeable, thorough, educational, available

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January 07, 2026

5.0

See above the excellent qualities of Dr Sun

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December 23, 2025

5.0

Good physical exam, took time to talk and review history.

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December 17, 2025

5.0

Very caring and thorough. You can tell she cared for her patient.

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December 04, 2025

5.0

Dr. Sun is compassionate, kind, caring and listens to my concerns. She is focused on my treatment plan and ahead of what's available for treatment. I highly recommend her. I'm happy to have her as my Doctor.

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December 03, 2025

5.0

She was so patient, thoughtful, caring!!!!!

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December 03, 2025

5.0

Dr Sun is very thorough & dedicated. She is very patient & polite.

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November 25, 2025

5.0

Amazing doctor

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November 24, 2025

5.0

Her behavior was very friendly with me

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November 17, 2025

5.0

Easy to communicate, great educational and professional background

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November 13, 2025

5.0

Dr. Sun is highly professional and responds to every question thoroughly. She addresses every concern and is willing to take time to do so.

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November 12, 2025

5.0

Dedicated & patient.

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October 29, 2025

5.0

She is very patient & dedicated to her patients.

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October 29, 2025

5.0

Knowledgeable,Friendly,pays attention to pt needs

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October 26, 2025

5.0

Very attentive and thorough.

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October 23, 2025

5.0

Caring, knowledgeable, professional

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October 21, 2025

5.0

Dr. Sun is thoughtful and thoroug.

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October 21, 2025

5.0

Dr. Sun is patient and takes her time to address your questions and concerns.

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October 19, 2025

5.0

Dr. Sun was very caring, explained illness clearly and provided and started a treatment plan. The plan has already provided relief of my symptoms. Thank you

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October 17, 2025

5.0

Great demeanor and informative

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October 15, 2025

5.0

She is an exceptional gift to the medical world.

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October 15, 2025

5.0

Took her time with me in explaining my problems.

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October 14, 2025

5.0

Dr. Sun is thorough, compassionate, and professional. She is extremely bright and knowledgable (which is very important in my unusual situation). I appreciate her time during my appointments and during any follow up that is needed.

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October 13, 2025

5.0

Dr. Julia Sun was personable, caring and confident in my diagnosis. She took the time to examine each of my joints and ask about my life as a person.

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October 08, 2025

5.0

Really listened and wanted to help

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October 07, 2025

5.0

Dr. Sun was very nice. She took her time and listened to me. She came up with a few possible reasons for what could be causing my symptom and explained each to me. She didn't push any medications or treatments on me.

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September 27, 2025

5.0

Knowledgeable, took time to review my history & explain to me

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September 24, 2025

5.0

Answered all our questions did not rush us

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September 23, 2025

5.0

Reasons stated above. Excellent Doctor.

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September 02, 2025

5.0

Dr Sun consistently demonstrates above average caring for the patient by listening with purpose to clarify wonders related to consisten difficulties and! Or new areas of pain

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September 01, 2025

5.0

She concern about her patience

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August 26, 2025

5.0

She's very smart and always ahead of the treatment plan. I feel much better after seeing Dr. Sun. She's an awesome Provider. I'm thankful for knowing her.

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August 23, 2025

5.0

Dr. Sun, is a professional in every way. She keeps abreast of the latest trends in care, and she makes the time to listen and communicate with me so that I understand the treatment plan, and she instills optimism and compassion.

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August 16, 2025

5.0

Smart and thorough. Easy to communicate with.

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August 15, 2025

5.0

Felt like i was in good hands

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August 14, 2025

5.0

She is thorough and explains everything very well.

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August 14, 2025

5.0

She's excellent

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August 14, 2025

5.0

Very thorough and personable.

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August 13, 2025

5.0

Julia Lailai Sun is an excellent rheumatologist, and she has my complete respect and admiration. I feel comfortable and safe under her expert care.

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August 11, 2025

5.0

Because of the excellent care she gives me.

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August 11, 2025

5.0

Thorough and easy to understand

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August 07, 2025

5.0

She was very thorough and showed concern for me as a patient

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August 03, 2025

5.0

Nice smart listens involves me in decision making great follow through, she is also a lovely person.

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July 28, 2025

5.0

The best I've ever seen.

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July 24, 2025

5.0

Dr. Sun is patient and takes the time to listen to your concerns.

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July 19, 2025

5.0

See above, she also answers all my questions. Disappointed that she will not be at Grayslake after Sept.

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July 17, 2025

5.0

She is amazing!!

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July 12, 2025

5.0

Really took time to hear all my concerns

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July 08, 2025

5.0

Dr Sun roots for her patients and is personally connected to them. She answers every question and is compassionate

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July 02, 2025

5.0

She knows her shit.

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June 27, 2025

4.0

Her bedside manner

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June 26, 2025

5.0

she made me feel heard. I felt like she was knowledgeable and not an extremist. She was also very kind, and I did not feel rushed.

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June 25, 2025

5.0

I think Dr. Sun is an excellent doctor. Listens and explains very well.

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June 23, 2025

5.0

Excellent care and treatment

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June 20, 2025

5.0

Dr. Sun took time to understand my issues and answer my questions. Dr. Sun explained things clearly.

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June 17, 2025

5.0

Dr. Sun was incredibly knowledgeable, kind and excellent to interact with during my first visit today. She had thoughtful answers to my questions and really took the time to engage with me.

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June 10, 2025

5.0

She was very personable, honest and Im 99.9 % sure she actually cared .

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May 29, 2025

5.0

Dr Sun was incredibly patient, answering my questions and explaining everything in detail.

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May 25, 2025

5.0

Dr. Sun listens carefully to what I say and responds intelligently.

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May 20, 2025

5.0

Outstanding care to patient.

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May 19, 2025

5.0

The Dr was wonderful; detailed; great listener; very smart and helpful and good at what she does.

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May 19, 2025

5.0

Dr Sun was very knowledgeable and caring.

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May 19, 2025

5.0

Dr Sun was thorough , friendly, answered my questions and recommended a straightforward course of treatment.

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May 09, 2025

5.0

Dr. Sun listens to my problems, very thorough, offers easy to understand explanations to my questions.

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May 05, 2025

5.0

I feel so confident in the care that Dr. Sun gives me. She is very thorough in my exams.She asks me many questions and she answers all of my questions regarding my health. I could not ask for a better doctor. I am very pleased with Dr. Sun.

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May 04, 2025

5.0

She took time to examine me and answer questions. She seemed very professional and knowledgeable.

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May 02, 2025

5.0

Wonderful. Very thorough, thoughtful, and reassuring. Dr. Sun has my complete confidence in her abilities and that I am receiving the best care possible through her. And she is a great communicator.

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Disclosures

Julia L. Sun, MD reported no external professional relationships for calendar year 2024.

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.