Chien Chiang, M.D.
Gastroenterology Physician · New York, NY
Chien Chiang, M.D. is a gastroenterology physician with a practice address in New York, New York, and NPI 1255341723, issued on Aug 8, 2006. Check the license (New York 177439, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Chien Chiang
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 177439 NY
Self-reported in NPPES; status is on the state search - Practice location
- 109 Lafayette St, New York, NY 10013
- Phone
- (212) 941-7856
- Enumerated
- Aug 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (212) 941-8951
- Medicare enrollment
- Enrolled (PECOS I20120320000947); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1987
- Entity
- Type 1 · individual
Also registered at 109 Lafayette St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mary Chen, O.D.Optometrist1518166990
- Raymond Fong, M.D.Ophthalmology Physician1730181868
- Bo Huang, L.ACAcupuncturist1649472622
- Melissa Leung, M.D.Ophthalmology Physician1982608444
- Wing Tsang, M.D.Internal Medicine Physician1215027776
- David Yip, O.D.Optometrist1336143890
Verify Chien Chiang 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 177439Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11.4 times the Medicare Part D claims of the average gastroenterology physician in 2024
9,266 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 15% of claims.
Most prescribed
- Atorvastatin Calcium935 claims
- Amlodipine Besylate752 claims
- Omeprazole560 claims
- Vemlidy344 claims
- Pantoprazole Sodium303 claims
- Metformin Hcl278 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: $526.38
21 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.
Gastroenterology Physician providers in New York
There are 1,797 gastroenterology physician records in New York.
Other gastroenterology physician records in New York
- Elie Abadie, MDBrooklyn, NY1639235435
- Hafsa Abbas, MDFlushing, NY1487061438
- Naeem Abbas, MDValley Stream, NY1437432192
- Uzma Abbasi, M.D.Oneida, NY1275856106
- Maisa Abdalla, M.D.Rochester, NY1669645222
- Muhammad Abdullah, MDBrooklyn, NY1053312645
- Arthur Abelow, MDBronx, NY1235242728
- Elie Abemayor, M.D.Mount Kisco, NY1376565358
- Jeffrey Abergel, MDCortlandt Manor, NY1649472382
- Chaim Abittan, MDGreat Neck, NY1972512002
Common questions
What is Chien Chiang, M.D.'s NPI number?
Chien Chiang, M.D.'s National Provider Identifier (NPI) is 1255341723, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Chien Chiang, M.D. located?
The NPPES record lists a practice address at 109 Lafayette St, New York, NY, 10013. Phone: (212) 941-7856. Providers update this record themselves, so call before visiting.
How can I verify Chien Chiang, M.D.'s license?
NPPES lists New York license number 177439, 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 Chien Chiang, M.D. prescribe under Medicare Part D?
In 2024, Chien Chiang, M.D. had 9,266 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.