Arianna Grassmann
Arianna Grassmann is a Behavior Analyst provider (Behavior Analyst) practicing in Temecula, CA, registered in the NPPES registry with NPI 1033614003 since 2018.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1033614003 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Arianna Grassmann |
| Sex | Female |
| Practice address | 27720 JEFFERSON AVE, Temecula, CA, 92590 |
| Phone | 9516998640 |
| Enumeration date | 2018-03-29 |
| Last updated in NPPES | 2018-03-29 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103K00000X | Behavior Analyst | Primary | — | CA |
Copy-ready billing details
Provider: Arianna Grassmann NPI: 1033614003 Taxonomy: 103K00000X (Behavior Analyst) Address: 27720 JEFFERSON AVE, Temecula, CA, 92590
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1205938537 | Richard Uhler | Individual | Sports Medicine (Family Medicine) Physician | Temecula, CA |
| 1144383217 | Rochelle Whitson | Individual | Marriage & Family Therapist | Temecula, CA |
| 1225169642 | Whitson Family Therapy, Apc | Organization | Marriage & Family Therapist | Temecula, CA |
| 1902921257 | Denise Wingate | Individual | Marriage & Family Therapist | Temecula, CA |
| 1932301348 | Elaine Stahlhofen | Individual | Marriage & Family Therapist | Temecula, CA |
| 1679762272 | Danielle Johnson | Individual | Marriage & Family Therapist | Temecula, CA |
| 1558528752 | Jean Mao | Individual | Marriage & Family Therapist | Temecula, CA |
| 1841443165 | Julie Byrd | Individual | Marriage & Family Therapist | Temecula, CA |
Verify this record
Cross-check NPI 1033614003 against the authoritative CMS record: view Arianna Grassmann 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
Where does Arianna Grassmann practice?
What is the NPI number for Arianna Grassmann?
Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2018-03-29.