Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marie Leon

Q: What is the NPI number for Marie Leon?

The National Provider Identifier (NPI) for Marie Leon is 1215333117, a Type 1 (individual) record in the CMS NPPES registry.

Nurse Practitioner in Springfield, MA · enumerated 2014.

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

National Provider Identifier

1215333117

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Registry record

Entity type Individual (Type 1)

Name Marie Leon

Sex Female

Practice address 819 Worcester St, Ste 3, Springfield, MA, 01151

Phone (413) 543-6820

Enumeration date Nov 5, 2014

Last updated in NPPES Nov 5, 2014

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2278872 (MA) 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 Marie Leon practice?

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

What is the NPI number for Marie Leon?

The National Provider Identifier (NPI) for Marie Leon is 1215333117, 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 2014-11-05.