Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Best West Oxygen Supply, LLC

Oxygen Equipment & Supplies (DME) in Aurora, CO · enumerated 2007 · authorized official Michael Zalessky, President.

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

National Provider Identifier

1619172533

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Best West Oxygen Supply, LLC

Practice address 15300 E Chenango Ave, Aurora, CO, 80015

Phone (303) 617-0470

Fax (303) 617-0470

Enumeration date Jun 20, 2007

Last updated in NPPES Apr 8, 2008

Taxonomy & classification

332BX2000X Oxygen Equipment & Supplies (DME) Suppliers Primary

Authorized official

Name Michael Zalessky

Title President

Phone (720) 341-1389

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-04-08. Verify at npiregistry.cms.hhs.gov.

Where is Best West Oxygen Supply, LLC located?

The practice location on file with NPPES is in Aurora, CO.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-08.