Thomas Duen-Shyr Wang, MD
Gastroenterology Physician · Ann Arbor, MI
Thomas Duen-Shyr Wang, MD is a gastroenterology physician with a practice address in Ann Arbor, Michigan, and NPI 1831225648, issued on Feb 26, 2007. Check the license (Michigan 4301091009, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Thomas Duen-Shyr Wang
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 4301091009 MI
A72546 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 936-4000
- Enumerated
- Feb 26, 2007
- Record last updated
- Jun 26, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicaid ID
- 00A725460 CA
- Medicare enrollment
- Enrolled (PECOS I20080211000296); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1998
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 550 in Michigan → Look up another NPI →
Also registered at 1500 E Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thomas Duen-Shyr Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301091009Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average gastroenterology physician in 2024
127 Medicare Part D claims for 46 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Omeprazole26 claims
- Dicyclomine Hcl16 claims
- Ondansetron Hcl13 claims
- Famotidine11 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.
Industry payments in 2024: $122.80
1 payment: food and beverage; the largest payer was Janssen Biotech, Inc. 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
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas Duen-Shyr Wang among 550 gastroenterology physician records in Michigan
Thomas Duen-Shyr Wang, MD is one of 550 gastroenterology physician records with a practice address in Michigan. 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 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 38% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1998 · median 2003 among the 415 with a school on file
- Record last updated2019 · 52% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Michigan
There are 550 gastroenterology physician records in Michigan.
All 550 in Michigan → Every provider in Ann Arbor → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- John Allen, MDAnn Arbor, MI 481091154393502
- Frederick Askari, MD, PHDAnn Arbor, MI 481091689756108
- Hari Conjeevaram, MDAnn Arbor, MI 481091831271360
- Grace Elta, MDAnn Arbor, MI 481091275615700
- Joseph Kolars, M.D.Ann Arbor, MI 481091447222005
- Hellan Kwon, MDAnn Arbor, MI 481091336152651
- Laurence McMahon, MDAnn Arbor, MI 481091417038647
- Stacy Menees, MDAnn Arbor, MI 481091508898081
Common questions
What is Thomas Duen-Shyr Wang, MD's NPI number?
Thomas Duen-Shyr Wang, MD's National Provider Identifier (NPI) is 1831225648, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Duen-Shyr Wang, MD located?
The NPPES record lists a practice address at 1500 E Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 936-4000. Providers update this record themselves, so call before visiting.
How can I verify Thomas Duen-Shyr Wang, MD's license?
NPPES lists Michigan license number 4301091009, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas Duen-Shyr Wang, MD prescribe under Medicare Part D?
In 2024, Thomas Duen-Shyr Wang, MD had 127 Medicare Part D claims for 46 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.