Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Ellen Ann Thomsen, RBT
Behavior Technician in Monterey, CA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578076741
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Registry record
Entity type Individual (Type 1)
Name Miss Ellen Ann Thomsen
Credential RBT
Sex Female
Practice address 140 W Franklin St, Monterey, CA, 93940
Phone (800) 991-6070
Enumeration date Nov 10, 2017
Last updated in NPPES Nov 10, 2017
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
Where does Ellen Thomsen practice?
The practice location on file with NPPES is in Monterey, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ellen Thomsen?
The National Provider Identifier (NPI) for Ellen Thomsen is 1578076741, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Patricia Mcdermott Marriage & Family Therapist · Monterey, CA NPI 1215176813 Mary Melvin Clinical Psychologist · Monterey, CA NPI 1275844342 Kellen Scriffiny Intellectual & Developmental Disabilities Psychologist · Monterey, CA NPI 1952695405 Robbie Hanson Behavior Analyst · Monterey, CA NPI 1366799066 Darcy Wilson Speech-Language Pathologist · Monterey, CA NPI 1659614824 Verjene Kalashian Speech-Language Pathologist · Monterey, CA NPI 1063895043 Calandra Fernandez Behavior Technician · Monterey, CA NPI 1467825075 Karen Cassel Behavior Technician · Monterey, CA NPI 1538601570
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-10.