Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Matthew Tan

Q: What is the NPI number for Matthew Tan?

The National Provider Identifier (NPI) for Matthew Tan is 1689513699, a Type 1 (individual) record in the CMS NPPES registry.

Student in an Organized Health Care Education/Training Program in Walnut Creek, CA · enumerated 2026.

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

National Provider Identifier

1689513699

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Registry record

Entity type Individual (Type 1)

Name Matthew Tan

Sex X

Practice address 1450 Treat Blvd Ste 320, Walnut Creek, CA, 94597

Phone (925) 296-9880

Enumeration date Mar 26, 2026

Last updated in NPPES Mar 26, 2026

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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 Matthew Tan practice?

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

What is the NPI number for Matthew Tan?

The National Provider Identifier (NPI) for Matthew Tan is 1689513699, 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 2026-03-26.