Wallace J. Wang, M.D.
Gastroenterology Physician · New York, NY
Wallace J. Wang, M.D. is a gastroenterology physician with a practice address in New York, New York, and NPI 1598924805, issued on Jun 3, 2008. Check the license (New York 257569, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Wallace J. Wang
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 257569 NY
Self-reported in NPPES; status is on the state search - Practice location
- 17 Elizabeth St, New York, NY 10013
- Phone
- (212) 219-8031
- Enumerated
- Jun 3, 2008
- Record last updated
- Jan 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (212) 219-3903
- Medicare enrollment
- Enrolled (PECOS I20150812007031); may accept Medicare assignment
- Medical or professional school
- New York Medical College, 2007
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 17 Elizabeth St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Wallace J. Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 257569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average gastroenterology physician in 2024
2,238 Medicare Part D claims for 519 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Famotidine698 claims
- Omeprazole543 claims
- Pantoprazole Sodium229 claims
- Esomeprazole Magnesium137 claims
- Linzess90 claims
- Vemlidy86 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: $24,232.09
67 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, 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
- Downtown Gastroenterology Associates PCNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wallace J. Wang among 1,797 gastroenterology physician records in New York
Wallace J. Wang, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 62% of them.
- NPI issued2008 · 62% of these records are older, 31% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2007 · median 1999 among the 1,378 with a school on file
- Record last updated2017 · 65% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in New York → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Anthony Chan, DONew York, NY 100131457449621
- Chien Chiang, M.D.New York, NY 100131255341723
- Danny Chu, MDNew York, NY 100131891886842
- Mark Chu, DONew York, NY 100131588755565
- Rene Eng, M.D.New York, NY 100131629020151
- Anthony Foong, M.D.New York, NY 100131417030917
- Timothy Johnson, M.D.New York, NY 100131801895248
- Titus Kwok, MDNew York, NY 100131528131984
Common questions
What is Wallace J. Wang, M.D.'s NPI number?
Wallace J. Wang, M.D.'s National Provider Identifier (NPI) is 1598924805, issued on Jun 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Wallace J. Wang, M.D. located?
The NPPES record lists a practice address at 17 Elizabeth St, New York, NY, 10013. Phone: (212) 219-8031. Providers update this record themselves, so call before visiting.
How can I verify Wallace J. Wang, M.D.'s license?
NPPES lists New York license number 257569, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Wallace J. Wang, M.D. prescribe under Medicare Part D?
In 2024, Wallace J. Wang, M.D. had 2,238 Medicare Part D claims for 519 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.