John Will Hubbard IV
John Will Hubbard IV is a Behavior Analyst provider (Behavior Analyst) practicing in Fairfield, CA, registered in the NPPES registry with NPI 1205312436 since 2018.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1205312436 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Will Hubbard IV |
| Sex | Male |
| Practice address | Fairfield, CA, 94534 |
| Phone | 9162713419 |
| Enumeration date | 2018-07-11 |
| Last updated in NPPES | 2018-07-25 |
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: John Hubbard NPI: 1205312436 Taxonomy: 103K00000X (Behavior Analyst) Address: Fairfield, CA, 94534
Verify this record
Cross-check NPI 1205312436 against the authoritative CMS record: view John Will Hubbard IV 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 2018-07-25.