Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Doctors Oxygen Service, Inc.

Durable Medical Equipment & Medical Supplies in Franklin, WI · enumerated 2010 · authorized official Kahla Berczyk, Cfo.

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

National Provider Identifier

1356654263

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Registry record

Entity type Organization (Type 2)

Legal business name Doctors Oxygen Service, Inc.

Practice address 9760 S 60th St, Franklin, WI, 53132

Phone (800) 558-3834

Fax (414) 421-7055

Enumeration date Jul 20, 2010

Last updated in NPPES Jul 20, 2010

Taxonomy & classification

332B00000X Durable Medical Equipment & Medical Supplies Suppliers · License 456-0000527720-03 (WI) Primary

Authorized official

Name Kahla Berczyk

Title Cfo

Phone (800) 558-3834

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-07-20. Verify at npiregistry.cms.hhs.gov.

Where is Doctors Oxygen Service, Inc. located?

The practice location on file with NPPES is in Franklin, WI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-20.