NPI Portal NPI Lookup & Verification

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

Ms. Mary St. John Larson, LMT,CMTPT

Specialist in Orange Park, FL · enumerated 2007 · practices at Mcalpin Dental Group P.A..

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

National Provider Identifier

1043346687

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Registry record

Entity type Individual (Type 1)
Name Ms. Mary St. John Larson
Credential LMT,CMTPT
Sex Female
Practice address Orange Park, FL, 32073
Phone (904) 215-9923
Enumeration date Feb 26, 2007
Last updated in NPPES Dec 5, 2013

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License MA 39861 (FL) Primary

Other identifiers

Identifier Type State Issuer
C4073 Other FL BCBSF

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 Larson practice?
The practice location on file with NPPES is in Orange Park, FL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Larson?
The National Provider Identifier (NPI) for Mary Larson is 1043346687, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-05.