NPI Portal NPI Lookup & Verification

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

Ms. Mary Isabell Davidson, LMP,LA

Massage Therapist in Bellevue, WA · enumerated 2012.

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

National Provider Identifier

1831456912

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Registry record

Entity type Individual (Type 1)
Name Ms. Mary Isabell Davidson
Credential LMP,LA
Sex Female
Practice address Bellevue, WA, 98004
Phone (425) 462-1116
Enumeration date Apr 13, 2012
Last updated in NPPES Apr 13, 2012

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

Taxonomy & licenses

225700000X Massage Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License MA00013114 (WA) 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

What is the NPI number for Mary Davidson?
The National Provider Identifier (NPI) for Mary Davidson is 1831456912, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Davidson practice?
The practice location on file with NPPES is in Bellevue, WA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-04-13.