Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Yuen-Jong Liu, M.D.

Plastic Surgery Physician in Darien, CT · enumerated 2009.

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

National Provider Identifier

1134356959

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Registry record

Entity type Individual (Type 1)

Name Dr. Yuen-Jong Liu

Credential M.D.

Sex Male

Practice address 722 Post Rd Ste 200, Darien, CT, 06820

Phone (203) 656-9999

Fax (203) 655-0099

Enumeration date Jun 18, 2009

Last updated in NPPES Sep 10, 2019

Taxonomy & licenses

208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians · License 60203 (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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Yuen-Jong Liu?

Yuen-Jong Liu is registered in NPPES with the primary taxonomy of Plastic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-10.