Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephanie Leszczynski, RN

Registered Nurse in Southbridge, MA · enumerated 2015.

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

National Provider Identifier

1699140533

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Registry record

Entity type Individual (Type 1)

Name Stephanie Leszczynski

Credential RN

Sex Female

Practice address 100 South St, Southbridge, MA, 01550

Phone (508) 765-9771

Enumeration date Dec 3, 2015

Last updated in NPPES Dec 3, 2015

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License RN2275449 (MA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Stephanie Leszczynski?

Stephanie Leszczynski is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-03.