Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David Ta-Chun Chyuwei, D.D.S

Dentist in Sunnyvale, CA · enumerated 2007 · practices at Karin Meng Ms Od and Nicole Janovitch Od Ptr.

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

National Provider Identifier

1851422547

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Registry record

Entity type Individual (Type 1)

Name Dr. David Ta-Chun Chyuwei

Credential D.D.S

Sex Male

Practice address 1210 E Arques Ave, Suite 212, Sunnyvale, CA, 94085

Phone (408) 749-9018

Fax (408) 749-9048

Enumeration date Mar 7, 2007

Last updated in NPPES May 21, 2009

Taxonomy & licenses

122300000X Dentist Dental Providers · License 46574 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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 NPI 1851422547 active?

Yes, as of the latest NPPES snapshot, NPI 1851422547 is active (record last updated 2009-05-21).

How do I verify David Chyuwei's NPI record?

Cross-check NPI 1851422547 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-21.