Wei M. Sun
Expertise in
38
conditions

Dr. Wei M. Sun

Gastroenterology
745 Fletcher Dr, 
Elgin, IL 
Accepting New Patients
Offers Telehealth
Referral may be required
Before you request
Expertise in
38
conditions
745 Fletcher Dr, 
Elgin, IL 

Overview

Wei M. Sun, MD, is an independent gastroenterologist at Ascension Illinois in Arlington Heights, Illinois. He diagnoses and treats gastrointestinal (GI) diseases and disorders in adults. Dr. Sun listens to understand you and your health concerns. He takes the time to get to know you and your health history. Then, Dr. Sun works with you to create a personalized care plan for your digestive health.

Dr. Sun is highly rated in 38 conditions, according to our data. His clinical expertise encompasses Diarrhea, Trichohepatoenteric Syndrome, Familial Adenomatous Polyposis, Endoscopy, and Gastrectomy.

Dr. Sun is board certified in The American Board Of Internal Medicine - Gastroenterology and American Board Of Internal Medicine, Gastroenterology. He is actively involved in clinical research, co-authoring 107 peer reviewed articles. Dr. Sun is currently accepting new patients.

Specialties

Gastroenterology

Licenses

Internal Medicine in IL

Board Certifications

The American Board Of Internal Medicine - Gastroenterology
American Board Of Internal Medicine, Gastroenterology

Fellowships

University of Michigan - Ann Arbor

Hospital Affiliations

Saint Joseph Hospital-Elgin
Northwestern Medicine Mchenry
Advocate Sherman Hospital
Ascension Saint Alexius

Languages Spoken

English
Mandarin

Gender

Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem BCBS
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Celtic
  • HMO
  • INSURANCE PLAN
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
Devoted Health
  • MEDICARE MAPD
  • OTHER MEDICARE
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
HealthPartners
  • POS
  • PPO
Highmark
  • EPO
  • HMO
  • PPO
Horizon Healthcare
  • EPO
  • POS
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
MercyCare
  • EPO
  • HMO
Meridian Choice
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Northern Plains Alliance
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE PDP
Oscar
  • EPO
  • HMO
  • PPO
Premera Blue Cross
  • INSURANCE PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • PPO
Quartz Health Plan
  • HMO
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
TeamCare
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Zing Health
  • MEDICARE MAPD
  • MEDICARE SNP
View 25 Less Insurance Carriers -

Locations

Illinois Gastroenterology Group, LLC
745 Fletcher Dr, Elgin, IL 60123
Other Locations
Illinois Gastroenterology Group LLC
1415 S Arlington Heights Rd, Arlington Heights, IL 60005

Additional Areas of Focus

Dr. Sun has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

107 Total Publications

Improved Deep Learning Prediction of TCR-HLA Associations.
Improved Deep Learning Prediction of TCR-HLA Associations.
Journal: Statistics in biosciences
Published: July 15, 2026
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Frequently Asked Questions about Dr. Wei M. Sun

How do I make an appointment with Dr. Wei M. Sun?

You can book an appointment with Dr. Wei M. Sun by calling their office at 847-888-1300. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Wei M. Sun a top-rated expert for Diarrhea?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Wei M. Sun is classified as an Advanced expert for Diarrhea, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Wei M. Sun specialize in?

While Dr. Wei M. Sun is a Gastroenterology, they have specific expertise in Diarrhea, Trichohepatoenteric Syndrome, and Familial Adenomatous Polyposis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.

Does Dr. Wei M. Sun participate in research or clinical trials?

Yes. Dr. Wei M. Sun has published 107 articles and abstracts on conditions like Diarrhea. You can view a list of Dr. Wei M. Sun's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Wei M. Sun accept my insurance?

Dr. Wei M. Sun accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 847-888-1300 to verify that your specific plan is currently accepted before your visit.

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

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