Peter Liang, MD
Gastroenterology Physician · New York, NY
Peter Liang, MD is a gastroenterology physician with a practice address in New York, New York, and NPI 1770711921, issued on Jun 26, 2009. Check the license (New York 282014, as entered in NPPES) on the NYS Education Department, Office of the Professions; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Peter Liang
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 282014 NY
Self-reported in NPPES; status is on the state search - Practice location
- 423 E 23RD St, New York, NY 10010
- Phone
- (212) 686-7500
- Enumerated
- Jun 26, 2009
- Record last updated
- Feb 5, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20251002005079); may accept Medicare assignment
- Medical or professional school
- Harvard Medical School, 2009
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 423 E 23RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Peter Liang 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 282014Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Peter Liang among 1,797 gastroenterology physician records in New York
Peter Liang, MD 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 not. Its NPI, issued in 2009, is newer than 69% of them.
- NPI issued2009 · 69% of these records are older, 27% newer
- In a Medicare fileNo · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2009 · median 1999 among the 1,378 with a school on file
- Record last updated2016 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,797 in New York → Every provider in New York → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Herbert Dyrszka, M.D.New York, NY 100101104879030
- Michael Eng, M.D.New York, NY 100101710090410
- Fritz Francois, M.D., M.S.New York, NY 100101164516712
- Babak Mohajer, MDNew York, NY 100101003839374
- Lawrence Ottaviano, M.D.New York, NY 100101538112461
- Michael Poles, M.D., PH.D.Ny, NY 100101346280690
- Violeta Popov, MDNew York, NY 100101326011438
- Robert Raicht, M.D.New York, NY 100101407853179
Common questions
What is Peter Liang, MD's NPI number?
Peter Liang, MD's National Provider Identifier (NPI) is 1770711921, issued on Jun 26, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Peter Liang, MD located?
The NPPES record lists a practice address at 423 E 23RD St, New York, NY, 10010. Phone: (212) 686-7500. Providers update this record themselves, so call before visiting.
How can I verify Peter Liang, MD's license?
NPPES lists New York license number 282014, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.