Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Arnel T. Lee, DDS and Gary H. Lum, DDS, PC

General Practice Dentistry in Cupertino, CA · enumerated 2007 · authorized official Gary Lum, Owner.

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

National Provider Identifier

1790999688

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Registry record

Entity type Organization (Type 2)

Legal business name Arnel T. Lee, DDS and Gary H. Lum, DDS, PC

Other name <Unavail>

Practice address 10251 Torre Ave, Suite 228, Cupertino, CA, 95014

Phone (408) 243-3748

Fax (408) 255-0892

Enumeration date May 9, 2007

Last updated in NPPES Jul 1, 2013

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers · License 51479 (CA) Primary

Authorized official

Name Gary Lum

Title Owner

Phone (408) 243-3748

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

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Arnel T. Lee, DDS and Gary H. Lum, DDS, PC?

Arnel T. Lee, DDS and Gary H. Lum, DDS, PC is registered in NPPES as a General Practice Dentistry (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-01.