Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Peter Liang, MD

Individual provider Gastroenterology Physician · NPI 1770711921

Peter Liang, MD is a Gastroenterology in New York, New York. Graduated from Harvard Medical School in 2009, 17 years ago. Licensed in New York.

Years since qualifying
17
Trained at
Harvard Medical School
Licensed in
NY
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

423 E 23rd St Division Of Gastroenterology
New York, NY 10010-5011
Phone: (212) 686-7500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 282014 (NY)

Record details

NPI number1770711921
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2009
Last updated in NPPESFebruary 5, 2016

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGASTROENTEROLOGY
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2009 (17 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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