Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc Mager

Home Modifications Contractor in Denver, CO · enumerated 2017.

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

National Provider Identifier

1790211902

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Marc Mager

Sex Male

Practice address 4695 S Monaco St Ste 111, Suite 111, Denver, CO, 80237

Phone (303) 302-6136

Fax (303) 302-1628

Enumeration date May 8, 2017

Last updated in NPPES May 8, 2017

Taxonomy & licenses

171WH0202X Home Modifications Contractor Other Service Providers Primary

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 specialty is Marc Mager?

Marc Mager is registered in NPPES with the primary taxonomy of Home Modifications Contractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-08.