Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron Mastenbrook

Professional Counselor in Kalamazoo, MI · enumerated 2016.

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

National Provider Identifier

1316395213

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Registry record

Entity type Individual (Type 1)

Name Aaron Mastenbrook

Sex Male

Practice address 2615 Stadium Dr, Kalamazoo, MI, 49008

Phone (269) 343-1651

Enumeration date Jun 1, 2016

Last updated in NPPES Feb 25, 2025

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 6451024214 (MI) 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

Where does Aaron Mastenbrook practice?

The practice location on file with NPPES is in Kalamazoo, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Aaron Mastenbrook?

The National Provider Identifier (NPI) for Aaron Mastenbrook is 1316395213, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-25.