Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Aaron Mcmahon, MA
Counselor in Mundelein, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1881900298
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Registry record
Entity type Individual (Type 1)
Name Aaron Mcmahon
Credential MA
Sex Male
Practice address 126 W Maple Ave, Mundelein, IL, 60060
Phone (847) 347-7367
Enumeration date Aug 23, 2010
Last updated in NPPES Aug 23, 2010
Taxonomy & licenses
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.
Frequently asked questions
How do I verify Aaron Mcmahon's NPI record?
Cross-check NPI 1881900298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1881900298 active?
Yes, as of the latest NPPES snapshot, NPI 1881900298 is active (record last updated 2010-08-23).
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-23.