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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mary Mahon

Rehabilitation Practitioner in Lancaster, CA · enumerated 2007 · practices at Mental Health America of Los Angeles.

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

National Provider Identifier

1952428435

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Registry record

Entity type Individual (Type 1)
Name Mary Mahon
Sex Female
Practice address Lancaster, CA, 93534
Phone (661) 726-2850
Fax (661) 579-8369
Enumeration date Mar 22, 2007
Last updated in NPPES Aug 6, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers · License NA Secondary
225400000X Rehabilitation Practitioner Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License NA 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 Mary Mahon practice?
The practice location on file with NPPES is in Lancaster, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Mahon?
The National Provider Identifier (NPI) for Mary Mahon is 1952428435, 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 2013-08-06.