Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Justin Mahlmeister

Addiction (Substance Use Disorder) Registered Nurse in Ashland, KY · enumerated 2020 · practices at Crossroads Treatment Center of Ashland, Psc.

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

National Provider Identifier

1447863261

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Registry record

Entity type Individual (Type 1)

Name Justin Mahlmeister

Sex Male

Practice address 1220 Greenup Ave, Ashland, KY, 41101

Phone (800) 805-6989

Enumeration date Aug 31, 2020

Last updated in NPPES Aug 31, 2020

Taxonomy & licenses

163WA0400X Addiction (Substance Use Disorder) Registered Nurse Nursing Service Providers · License 1162871 (KY) 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 Justin Mahlmeister practice?

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

What is the NPI number for Justin Mahlmeister?

The National Provider Identifier (NPI) for Justin Mahlmeister is 1447863261, 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 2020-08-31.