NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Amy Margaret Liang, M.D.

Surgery Physician in New Haven, CT · enumerated 2013.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1346684073

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Amy Margaret Liang
Credential M.D.
Sex Female
Practice address 20 York St, New Haven, CT, 06510
Phone (203) 688-4242
Enumeration date Apr 24, 2013
Last updated in NPPES May 30, 2018

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 57237 (CT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1346684073 active?
Yes, as of the latest NPPES snapshot, NPI 1346684073 is active (record last updated 2018-05-30).
How do I verify Amy Liang's NPI record?
Cross-check NPI 1346684073 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-30.