Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Catlyn Anne Appelgate Millis
Specialist in Henderson, NV · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1063133569
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Registry record
Entity type Individual (Type 1)
Name Mrs. Catlyn Anne Appelgate Millis
Sex Female
Practice address 1089 Bootspur Dr, Henderson, NV, 89012
Phone (702) 557-3862
Enumeration date Sep 5, 2022
Last updated in NPPES Aug 12, 2025
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 Catlyn Millis?
Catlyn Millis is registered in NPPES with the primary taxonomy of Specialist. 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 2025-08-12.