NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Roswitha Breuer MD

Family Medicine Physician in Perris, CA · enumerated 2007 · authorized official Roswitha Breuer, Owner.

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

National Provider Identifier

1801934591

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Roswitha Breuer MD
Other name <Unavail>
Practice address 146 E 4th St, Perris, CA, 92570
Fax (951) 956-2154
Enumeration date Feb 2, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A36236 (CA) Primary

Authorized official

Name Roswitha Breuer
Title Owner

Other identifiers

Identifier Type State Issuer
00A362360 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 Roswitha Breuer MD?
NPPES lists Roswitha Breuer (Owner) as the authorized official for this organization.
What is the NPI number for Roswitha Breuer MD?
The NPI for Roswitha Breuer MD is 1801934591, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.