NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Larry J Marshall MD A Professional Corporation

General Practice Physician in Lakeside, CA · enumerated 2007 · authorized official Larry Marshall, President.

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

National Provider Identifier

1689884942

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Larry J Marshall MD A Professional Corporation
Practice address 12517 Lakeshore Dr, Lakeside, CA, 92040
Fax (619) 390-1810
Enumeration date May 23, 2007
Last updated in NPPES Dec 10, 2010

Taxonomy & classification

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A52344 (CA) Primary

Authorized official

Name Larry Marshall
Title President

Other identifiers

Identifier Type State Issuer
00A523440 Other CA BLUE CROSS BLUE SHIELD
GR0081780 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

What is the NPI number for Larry J Marshall MD A Professional Corporation?
The NPI for Larry J Marshall MD A Professional Corporation is 1689884942, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Larry J Marshall MD A Professional Corporation?
NPPES lists Larry Marshall (President) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-10.