Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marisa Williams
Social Worker in Louisville, KY · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033532767
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Registry record
Entity type Individual (Type 1)
Name Marisa Williams
Sex Female
Practice address 201 E Jefferson St, Louisville, KY, 40202
Phone (502) 569-2058
Enumeration date Jan 31, 2014
Last updated in NPPES Jan 31, 2014
Taxonomy & licenses
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.
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 Marisa Williams?
Marisa Williams is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-31.