Jonathan Siegfried
Jonathan Siegfried is a Behavior Analyst provider (Behavior Analyst) practicing in Elk Grove, CA, registered in the NPPES registry with NPI 1740999655 since 2022.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1740999655 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Jonathan Siegfried |
| Sex | Male |
| Practice address | 9355 E STOCKTON BLVD STE 214, Elk Grove, CA, 95624 |
| Phone | 2093663559 |
| Enumeration date | 2022-11-18 |
| Last updated in NPPES | 2022-11-18 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103K00000X | Behavior Analyst | Primary | — | — |
Copy-ready billing details
Provider: Jonathan Siegfried NPI: 1740999655 Taxonomy: 103K00000X (Behavior Analyst) Address: 9355 E STOCKTON BLVD STE 214, Elk Grove, CA, 95624
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1790202646 | Narita Sandhu | Individual | Mental Health Counselor | Elk Grove, CA |
Verify this record
Cross-check NPI 1740999655 against the authoritative CMS record: view Jonathan Siegfried 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-11-18.