Mrs. Regina Siles, BCBA
Mrs. Regina Siles is a Behavior Analyst provider (Behavior Analyst) practicing in Ashburn, VA, registered in the NPPES registry with NPI 1124960299 since 2026.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1124960299 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mrs. Regina Siles |
| Credential | BCBA |
| Sex | Female |
| Practice address | 43244 HAY RD, Ashburn, VA, 20147 |
| Phone | 7035745113 |
| Enumeration date | 2026-04-08 |
| Last updated in NPPES | 2026-04-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103K00000X | Behavior Analyst | Primary | BACB699520 | VA |
Copy-ready billing details
Provider: Regina Siles, BCBA NPI: 1124960299 Taxonomy: 103K00000X (Behavior Analyst) Address: 43244 HAY RD, Ashburn, VA, 20147
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1295337624 | Alena Abalikhina | Individual | Behavior Analyst | Ashburn, VA |
Verify this record
Cross-check NPI 1124960299 against the authoritative CMS record: view Mrs. Regina Siles 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.
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-04-08.