NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Southwestern Transportation Management Services

Transportation Broker in Corona, CA · enumerated 2011 · authorized official William Ames, Owner.

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

National Provider Identifier

1790080794

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Southwestern Transportation Management Services
Practice address 250 E Rincon St, Suite 203, Corona, CA, 92879
Phone (951) 340-3325
Fax (951) 340-3317
Enumeration date Jan 21, 2011
Last updated in NPPES Jan 21, 2011

Taxonomy & classification

347E00000X Transportation Broker Transportation Services Primary

Authorized official

Name William Ames
Title Owner
Phone (951) 340-3325

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

Where is Southwestern Transportation Management Services located?
The practice location on file with NPPES is in Corona, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2011-01-21. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-21.