Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chiayi Ni

Q: What is the NPI number for Chiayi Ni?

The National Provider Identifier (NPI) for Chiayi Ni is 1740686435, a Type 1 (individual) record in the CMS NPPES registry.

Nuclear Imaging & Therapy Physician in Sylmar, CA · enumerated 2014.

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

National Provider Identifier

1740686435

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Registry record

Entity type Individual (Type 1)

Name Chiayi Ni

Sex Female

Practice address Sylmar, CA, 91342

Phone (747) 210-4094

Enumeration date Nov 7, 2014

Last updated in NPPES Jun 12, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207UN0902X Nuclear Imaging & Therapy Physician Allopathic & Osteopathic Physicians · License A124678 (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

Where does Chiayi Ni practice?

The practice location on file with NPPES is in Sylmar, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Chiayi Ni?

The National Provider Identifier (NPI) for Chiayi Ni is 1740686435, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-06-12.