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

Mrs. Shirlene Yvette Washington-Mack, RN II

Case Management Registered Nurse in Ladson, SC · enumerated 2017.

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

National Provider Identifier

1487163275

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Registry record

Entity type Individual (Type 1)

Name Mrs. Shirlene Yvette Washington-Mack

Credential RN II

Sex Female

Practice address Ladson, SC, 29456

Phone (843) 873-9360

Fax (843) 873-9360

Enumeration date Sep 25, 2017

Last updated in NPPES Jul 21, 2022

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

Taxonomy & licenses

163WC0400X Case Management Registered Nurse Nursing Service Providers · License 45689 (SC) 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.

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 Shirlene Washington-Mack?

Shirlene Washington-Mack is registered in NPPES with the primary taxonomy of Case Management Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.