Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Elyse Trefts
Behavior Technician in Monterey, CA · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1023643756
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Registry record
Entity type Individual (Type 1)
Name Elyse Trefts
Sex Female
Practice address 182 El Dorado St, Monterey, CA, 93940
Phone (510) 652-7445
Enumeration date Mar 3, 2020
Last updated in NPPES Mar 3, 2020
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 Elyse Trefts?
The National Provider Identifier (NPI) for Elyse Trefts is 1023643756, a Type 1 (individual) record in the CMS NPPES registry.
Where does Elyse Trefts practice?
The practice location on file with NPPES is in Monterey, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Molly Fittro Behavior Technician · Monterey, CA NPI 1891290680 Edgardo Puente Behavior Technician · Monterey, CA NPI 1740785534 Satveka Ilango Behavior Technician · Monterey, CA NPI 1780189571 Natalie Lopes Cunha Behavior Technician · Monterey, CA NPI 1215432000 Jesennie Sieg Behavior Technician · Monterey, CA NPI 1003311804 Mariah Flores-Fonseca Behavior Technician · Monterey, CA NPI 1154826949 Zachary Cotti Behavior Technician · Monterey, CA NPI 1396370029 Mercedes De La Rosa Behavior Technician · Monterey, CA NPI 1285269910
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-03.