Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Reina Beatrice Tello Mcmillen
School Counselor in Duarte, CA · enumerated 2025.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1114814779
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Registry record
Entity type Individual (Type 1)
Name Reina Beatrice Tello Mcmillen
Sex Female
Practice address 1401 Highland Ave, Duarte, CA, 91010
Phone (657) 321-4000
Enumeration date Jun 18, 2025
Last updated in NPPES Jun 18, 2025
Taxonomy & licenses
101YS0200X School Counselor Behavioral Health & Social Service Providers · License 240326379 (CA) 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 Reina Mcmillen?
Reina Mcmillen is registered in NPPES with the primary taxonomy of School Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Development Specialty Projects, Inc. Substance Use Disorder Rehabilitation Clinic/Center · Duarte, CA NPI 1366653123 California School of the Arts - San Gabriel Valley Local Education Agency (LEA) · Duarte, CA NPI 1730716556 Gregory Endelman Psychologist · Duarte, CA NPI 1265174940 Mindy Lynn Shiroma School Counselor · Duarte, CA NPI 1144115643 California School of the Arts-San Gabriel Valley School Counselor · Duarte, CA NPI 1144116856 Austin Davis School Psychologist · Duarte, CA NPI 1811886807 Amy Wang School Psychologist · Duarte, CA NPI 1073402079 Maureen Davis Psychologist · Duarte, CA NPI 1679462675
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-06-18.