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Leonard Lem, M.D., D.D.S., Inc.

Oral and Maxillofacial Pathology Dentistry in Arcadia, CA · enumerated 2007 · authorized official Leonard Lem, Oral and Maxillofacial Surgeon.

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

National Provider Identifier

1326244534

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Registry record

Entity type Organization (Type 2)
Legal business name Leonard Lem, M.D., D.D.S., Inc.
Practice address 650 W Duarte Rd, #300, Arcadia, CA, 91007
Phone (626) 821-9633
Fax (626) 821-9697
Enumeration date Jun 25, 2007
Last updated in NPPES Jul 23, 2007

Taxonomy & classification

1223P0106X Oral and Maxillofacial Pathology Dentistry Dental Providers · License 35519 (CA) Primary

Authorized official

Name Leonard Lem
Title Oral and Maxillofacial Surgeon
Phone (626) 821-9633

Other identifiers

Identifier Type State Issuer
B3551901 Other CA STATE LICENSE NUMBER

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

What is the NPI number for Leonard Lem, M.D., D.D.S., Inc.?
The NPI for Leonard Lem, M.D., D.D.S., Inc. is 1326244534, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Leonard Lem, M.D., D.D.S., Inc.?
NPPES lists Leonard Lem (Oral and Maxillofacial Surgeon) as the authorized official for this organization.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-23.