Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Angela En-Tzu Chen, MD

Surgery Physician in San Jose, CA · enumerated 2006.

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

National Provider Identifier

1720003791

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Registry record

Entity type Individual (Type 1)

Name Angela En-Tzu Chen

Credential MD

Sex Female

Practice address 751 S Bascom Ave, General Surgery Department, San Jose, CA, 95128

Phone (408) 885-5000

Enumeration date Jul 12, 2006

Last updated in NPPES Oct 24, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A95612 (CA) Primary

2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License A95612 (CA) Secondary

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 Angela Chen?

Angela Chen is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-24.