Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Charlie Grenier, PPS, MS
School Counselor in San Marcos, CA · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922966191
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Registry record
Entity type Individual (Type 1)
Name Charlie Grenier
Credential PPS, MS
Sex Female
Practice address 1 E Mission Hills Ct, San Marcos, CA, 92069
Phone (760) 290-2700
Enumeration date Jan 14, 2026
Last updated in NPPES Jan 14, 2026
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 Charlie Grenier?
Charlie Grenier 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 → Kenneth Gommel Athletic Trainer · San Marcos, CA NPI 1508801382 Madison Pradels Athletic Trainer · San Marcos, CA NPI 1174381271 Angela Segal School Counselor · San Marcos, CA NPI 1134088297 Adriana Rios School Counselor · San Marcos, CA NPI 1558229625 Cherryl Baker School Counselor · San Marcos, CA NPI 1992664064 Stephanie Brizeno School Counselor · San Marcos, CA NPI 1588523591 Susan Martinez Alejandre School Counselor · San Marcos, CA NPI 1861351199 Eric Cruz School Counselor · San Marcos, CA NPI 1821922162
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-14.