Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

David Tianxiang Liu, MD

Otolaryngic Allergy Physician in Stanford, CA · enumerated 2024.

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

National Provider Identifier

1427898089

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name David Tianxiang Liu

Credential MD

Sex Male

Practice address 300 Pasteur Dr, Stanford, CA, 94305

Phone (650) 723-4000

Enumeration date May 30, 2024

Last updated in NPPES Aug 6, 2024

Taxonomy & licenses

207Y00000X Otolaryngology Physician Allopathic & Osteopathic Physicians · License SPI830 (CA) Secondary

207YX0602X Otolaryngic Allergy Physician Allopathic & Osteopathic Physicians · License SPI830 (CA) 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 David Liu?

David Liu is registered in NPPES with the primary taxonomy of Otolaryngic Allergy Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-06.