Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark Mammen

Athletic Trainer in Champaign, IL · enumerated 2017.

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

National Provider Identifier

1558800250

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Registry record

Entity type Individual (Type 1)

Name Mark Mammen

Sex Male

Practice address 1806 N Market St, Champaign, IL, 61822

Phone (217) 356-4920

Enumeration date Feb 15, 2017

Last updated in NPPES Feb 15, 2017

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative 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.

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Frequently asked questions

How do I verify Mark Mammen's NPI record?

Cross-check NPI 1558800250 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558800250 active?

Yes, as of the latest NPPES snapshot, NPI 1558800250 is active (record last updated 2017-02-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-15.