Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Courtnay Flagg, BCBA
Behavior Analyst in Greeley, CO · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1073246989
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Registry record
Entity type Individual (Type 1)
Name Courtnay Flagg
Credential BCBA
Sex Female
Practice address 5400 W 11th St, Greeley, CO, 80634
Phone (720) 896-8656
Enumeration date Jul 7, 2022
Last updated in NPPES Sep 25, 2026
Taxonomy & licenses
103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-26-2853287 (CO) 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.
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 Courtnay Flagg?
Courtnay Flagg is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-25.