Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Catherine Stewart Werley, R.N.

Registered Nurse in Malone, NY · enumerated 2012.

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

National Provider Identifier

1538421326

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Registry record

Entity type Individual (Type 1)

Name Mrs. Catherine Stewart Werley

Credential R.N.

Sex Female

Practice address 355 W Main St, Malone, NY, 12953

Phone (518) 481-1673

Fax (518) 483-9378

Enumeration date Jun 8, 2012

Last updated in NPPES Jun 8, 2012

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 343238-1 (NY) Primary

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

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 Catherine Werley?

Catherine Werley 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.

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-08.