Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates

Specialist in Tarzana, CA · enumerated 2007 · authorized official Lawrence Guziel, Partner.

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

National Provider Identifier

1346394459

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates

Other name <Unavail>

Parent organization Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates

Practice address 18370 Burbank Blvd, #504, Tarzana, CA, 91356

Phone (818) 345-0664

Fax (818) 345-1866

Enumeration date Jan 23, 2007

Last updated in NPPES Mar 10, 2010

Taxonomy & classification

174400000X Specialist Other Service Providers · License G10627 (CA) Primary

Authorized official

Name Lawrence Guziel

Title Partner

Phone (818) 668-8869

Other identifiers

Identifier	Type	State	Issuer
GR0009390	Medicaid	CA	-

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

Who is the authorized official for Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates?

NPPES lists Lawrence Guziel (Partner) as the authorized official for this organization.

What is the NPI number for Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates?

The NPI for Guziel & Schoenfeld Nephrology & Internal Medicine Affiliates is 1346394459, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-10.