NPI Portal NPI Lookup & Verification

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

Martha Williams, RN

Community Health Registered Nurse in Seneca, SC · enumerated 2013.

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

National Provider Identifier

1417383811

Verified

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Registry record

Entity type Individual (Type 1)
Name Martha Williams
Credential RN
Sex Female
Practice address Seneca, SC, 29678
Enumeration date Sep 18, 2013
Last updated in NPPES Sep 5, 2018

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

Taxonomy & licenses

163WC1500X Community Health Registered Nurse Nursing Service Providers · License 213023 (SC) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
1942275649 Medicaid SC -

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 NPI 1417383811 active?
Yes, as of the latest NPPES snapshot, NPI 1417383811 is active (record last updated 2018-09-05).
How do I verify Martha Williams's NPI record?
Cross-check NPI 1417383811 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-05.