Alexander Trejo
Alexander Trejo is a Behavior Analyst provider (Behavior Analyst) practicing in Thousand Oaks, CA, registered in the NPPES registry with NPI 1043991391 since 2023.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1043991391 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Alexander Trejo |
| Sex | Male |
| Practice address | 223 E THOUSAND OAKS BLVD STE 100, Thousand Oaks, CA, 91360 |
| Phone | 7148341111 |
| Enumeration date | 2023-07-28 |
| Last updated in NPPES | 2023-07-28 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103K00000X | Behavior Analyst | Primary | — | — |
Copy-ready billing details
Provider: Alexander Trejo NPI: 1043991391 Taxonomy: 103K00000X (Behavior Analyst) Address: 223 E THOUSAND OAKS BLVD STE 100, Thousand Oaks, CA, 91360
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1215229307 | Dara Allgeier | Individual | Speech-Language Pathologist | Thousand Oaks, CA |
| 1033558077 | Rica Ocampo | Individual | Occupational Therapist | Thousand Oaks, CA |
| 1568979201 | Maryam Montelongo | Individual | Behavior Analyst | Thousand Oaks, CA |
| 1245893502 | Zhana Rozman | Individual | Behavior Analyst | Thousand Oaks, CA |
| 1861058398 | Danae Cardenas | Individual | Behavior Analyst | Thousand Oaks, CA |
| 1265065510 | Melissa Pinlac | Individual | Behavior Analyst | Thousand Oaks, CA |
| 1346868411 | Liliana Garcia | Individual | Behavior Analyst | Thousand Oaks, CA |
| 1689292211 | Joelle Martino | Individual | Psychologist | Thousand Oaks, CA |
Verify this record
Cross-check NPI 1043991391 against the authoritative CMS record: view Alexander Trejo on the official NPPES registry .
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. Read the full guide or validate an NPI number.
Frequently asked questions
Is NPI 1043991391 active?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-07-28.