Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diem-Chi Nguyen

Physician Assistant in Weaverville, CA · enumerated 2018.

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

National Provider Identifier

1942775887

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Registry record

Entity type Individual (Type 1)

Name Diem-Chi Nguyen

Sex Female

Practice address 143 Taylor St, Weaverville, CA, 96093

Phone (734) 483-5826

Enumeration date Oct 8, 2018

Last updated in NPPES Jul 7, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA56120 (CA) Primary

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 Diem-Chi Nguyen?

Diem-Chi Nguyen is registered in NPPES with the primary taxonomy of Physician Assistant. 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 2022-07-07.