Wei Ming Sun, M.D.
Gastroenterology Physician · Elgin, IL
Wei Ming Sun, M.D. is a gastroenterology physician with a practice address in Elgin, Illinois, and NPI 1164487450, issued on Apr 19, 2006. Check the license (Illinois 36115607, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Wei Ming Sun
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 36115607 IL
Self-reported in NPPES; status is on the state search - Practice location
- 745 Fletcher Dr Ste 202, Elgin, IL 60123
- Phone
- (847) 888-1300
- Enumerated
- Apr 19, 2006
- Record last updated
- Jan 19, 2023
- Fax
- (847) 888-1341
- Medicaid ID
- 36115607 IL
- Medicare enrollment
- Enrolled (PECOS I20060425000273); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 745 Fletcher Dr Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Amarathithada, NPNurse Practitioner1760957302
- Jennifer Dorfmeister, M.D.Gastroenterology Physician1710135876
- Tim Hossain, MDGastroenterology Physician1154433266
- Hemali Kumar, NPNurse Practitioner1548743388
- William Levis, M.D.Gastroenterology Physician1265512164
- Rajesh Pillai, MDGastroenterology Physician1083836027
Verify Wei Ming Sun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36115607Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average gastroenterology physician in 2024
1,197 Medicare Part D claims for 371 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Omeprazole279 claims
- Pantoprazole Sodium118 claims
- Famotidine87 claims
- Sucralfate76 claims
- Linzess74 claims
- Sod Sulf-Potass Sulf-Mag Sulf51 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $398.74
17 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Illinois Gastroenterology Group LLCElgin, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wei Ming Sun among 887 gastroenterology physician records in Illinois
Wei Ming Sun, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1983 · median 2003 among the 643 with a school on file
- Record last updated2023 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Elgin → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Omar Alsalman, MDElgin, IL 601231245636844
- Mary Dement, DOElgin, IL 601231619437738
- Jennifer Dorfmeister, M.D.Elgin, IL 601231710135876
- Gregory Gambla, DOElgin, IL 601231801832167
- Sonia Godambe, M.D.Elgin, IL 601231093964116
- Tim Hossain, MDElgin, IL 601231154433266
- Sunil Joseph, MDElgin, IL 601231982716098
- William Levis, M.D.Elgin, IL 601231265512164
Common questions
What is Wei Ming Sun, M.D.'s NPI number?
Wei Ming Sun, M.D.'s National Provider Identifier (NPI) is 1164487450, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wei Ming Sun, M.D. located?
The NPPES record lists a practice address at 745 Fletcher Dr Ste 202, Elgin, IL, 60123. Phone: (847) 888-1300. Providers update this record themselves, so call before visiting.
How can I verify Wei Ming Sun, M.D.'s license?
NPPES lists Illinois license number 36115607, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wei Ming Sun, M.D. prescribe under Medicare Part D?
In 2024, Wei Ming Sun, M.D. had 1,197 Medicare Part D claims for 371 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Wei Ming Sun, M.D.'s MIPS final score?
The 2023 MIPS final score is 85.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.