Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Harsono Dental Corp

General Practice Dentistry in Los Gatos, CA · enumerated 2016 · authorized official Masly Harsono, Owner.

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

National Provider Identifier

1225588254

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Registry record

Entity type Organization (Type 2)

Legal business name Harsono Dental Corp

Practice address 431 Monterey Ave Ste 6, Los Gatos, CA, 95030

Phone (408) 354-1717

Enumeration date Oct 14, 2016

Last updated in NPPES Dec 14, 2025

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 64977 (CA) Primary

Authorized official

Name Masly Harsono

Title Owner

Phone (646) 338-7593

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.

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Frequently asked questions

Where is Harsono Dental Corp located?

The practice location on file with NPPES is in Los Gatos, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2025-12-14. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Masly Harsono General Practice Dentistry · Los Gatos, CA NPI 1669893731

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-14.