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

Leslie Patricia Mcwilliam-Duffy, RN, FMHC, RYT 200

Health & Wellness Coach in Charlotte, NC · enumerated 2021.

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

National Provider Identifier

1356923650

Verified

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Registry record

Entity type Individual (Type 1)

Name Leslie Patricia Mcwilliam-Duffy

Credential RN, FMHC, RYT 200

Sex Female

Practice address Charlotte, NC, 28226

Phone (704) 516-5629

Enumeration date Apr 26, 2021

Last updated in NPPES Apr 26, 2021

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

Taxonomy & licenses

171400000X Health & Wellness Coach Other Service Providers 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

What specialty is Leslie Mcwilliam-Duffy?

Leslie Mcwilliam-Duffy is registered in NPPES with the primary taxonomy of Health & Wellness Coach. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-26.