Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Lawernce S Toomin & Mark R Bieber

Q: What is the NPI number for Lawernce S Toomin & Mark R Bieber?

The NPI for Lawernce S Toomin & Mark R Bieber is 1720173198, a Type 2 (organization) record in the CMS NPPES registry.

Dentist in Toluca Lake, CA · enumerated 2006 · authorized official Mark Bieber, Owner.

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

National Provider Identifier

1720173198

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Registry record

Entity type Organization (Type 2)

Legal business name Lawernce S Toomin & Mark R Bieber

Practice address 3808 Riverside Dr #408, 3808 Riverside Dr #408, Toluca Lake, CA, 91505

Phone (818) 842-3932

Fax (818) 842-3932

Enumeration date Oct 3, 2006

Last updated in NPPES Feb 11, 2009

Taxonomy & classification

122300000X Dentist Dental Providers · License 31403 (CA) Primary

122300000X Dentist Dental Providers · License 40540 (NY) Secondary

Authorized official

Name Mark Bieber

Title Owner

Phone (818) 842-3932

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 the NPI number for Lawernce S Toomin & Mark R Bieber?

The NPI for Lawernce S Toomin & Mark R Bieber is 1720173198, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Lawernce S Toomin & Mark R Bieber?

NPPES lists Mark Bieber (Owner) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-11.