Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mariana B Greub
Behavior Technician in Antioch, CA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1346004678
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Registry record
Entity type Individual (Type 1)
Name Mariana B Greub
Sex Female
Practice address 5616 Howell Mountain Ln, Antioch, CA, 94531
Phone (877) 296-8222
Fax (925) 397-6751
Enumeration date Feb 7, 2024
Last updated in NPPES Jan 17, 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
What is the NPI number for Mariana Greub?
The National Provider Identifier (NPI) for Mariana Greub is 1346004678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mariana Greub practice?
The practice location on file with NPPES is in Antioch, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Eston Greub Behavior Analyst · Antioch, CA NPI 1770282709 Beyou Behavior Therapy Spc Behavior Analyst · Antioch, CA NPI 1225887490 Bailey Mora Behavior Technician · Antioch, CA NPI 1528879517 Ma Cristina Esther Vardeleon Behavior Technician · Antioch, CA NPI 1972314961 Nathalya Gonzalez Behavior Technician · Antioch, CA NPI 1245042746 Pedro Morais De Castilho Goncalves Behavior Analyst · Antioch, CA NPI 1619774585 Kamilla Costa Behavior Technician · Antioch, CA NPI 1194519736 Beyou Behavior Therapy LLC Behavior Analyst · Antioch, CA NPI 1215722079
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-01-17.