Simon Demisiew
Simon Demisiew is a Behavior Analyst provider (Behavior Analyst) practicing in San Dimas, CA, registered in the NPPES registry with NPI 1730749185 since 2019. Practices at Rosemary Children'S Services (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1730749185 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Simon Demisiew |
| Sex | Male |
| Practice address | San Dimas, CA, 91773 |
| Phone | 6263456455 |
| Enumeration date | 2019-06-18 |
| Last updated in NPPES | 2019-06-18 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103K00000X | Behavior Analyst | Primary | — | — |
Copy-ready billing details
Provider: Simon Demisiew NPI: 1730749185 Taxonomy: 103K00000X (Behavior Analyst) Address: San Dimas, CA, 91773
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1962884643 | Rosemary Children'S Services | Organization | Foster Care Agency | San Dimas, CA |
| 1033562921 | Maritza Becerra | Individual | Licensed Vocational Nurse | San Dimas, CA |
| 1326518606 | Alicia Blanco | Individual | Behavior Technician | San Dimas, CA |
| 1184195943 | Evan Franco | Individual | Behavior Analyst | San Dimas, CA |
| 1972076602 | Armaine De Guzman | Individual | Behavior Technician | San Dimas, CA |
| 1588124440 | Michaella Morse | Individual | Behavior Analyst | San Dimas, CA |
| 1043770043 | Isabella Raman | Individual | Behavior Technician | San Dimas, CA |
| 1851854681 | Naomy Rodriguez-Vargas | Individual | Behavior Technician | San Dimas, CA |
Verify this record
Cross-check NPI 1730749185 against the authoritative CMS record: view Simon Demisiew 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 this the official NPI registry?
What specialty is Simon Demisiew?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2019-06-18.