Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Yan Mas'Sa
Registered Nurse in Leesville, LA · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255109617
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Registry record
Entity type Individual (Type 1)
Name Yan Mas'Sa
Sex Female
Practice address 215 Tower Street, Leesville, LA, 71446
Phone (318) 248-8430
Enumeration date Dec 15, 2023
Last updated in NPPES Dec 15, 2023
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 Yan Mas'Sa?
Yan Mas'Sa 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-15.