Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tina Iesha Williams

Gerontology Registered Nurse in Merrillville, IN · enumerated 2023.

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

National Provider Identifier

1841998374

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Registry record

Entity type Individual (Type 1)

Name Tina Iesha Williams

Sex Female

Practice address 8416 Taft St, Merrillville, IN, 46410

Phone (219) 750-9010

Enumeration date Feb 23, 2023

Last updated in NPPES May 4, 2024

Taxonomy & licenses

163WG0000X General Practice Registered Nurse Nursing Service Providers · License 28222770A (IN) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71013750A (IN) Secondary

163WG0600X Gerontology Registered Nurse Nursing Service Providers · License AG12220078 (IN) 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

What specialty is Tina Williams?

Tina Williams is registered in NPPES with the primary taxonomy of Gerontology 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-04.