Gary Donald Kociszewski Jr.
Gary Donald Kociszewski Jr. is a Assistant Behavior Analyst provider (Assistant Behavior Analyst) practicing in Spring Hill, FL, registered in the NPPES registry with NPI 1285148841 since 2017.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1285148841 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Gary Donald Kociszewski Jr. |
| Sex | Male |
| Practice address | Spring Hill, FL, 34609 |
| Phone | 7272148041 |
| Enumeration date | 2017-11-18 |
| Last updated in NPPES | 2026-04-13 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 106E00000X | Assistant Behavior Analyst | Primary | 0-20-11136 | FL |
Copy-ready billing details
Provider: Gary Kociszewski NPI: 1285148841 Taxonomy: 106E00000X (Assistant Behavior Analyst) Address: Spring Hill, FL, 34609
Verify this record
Cross-check NPI 1285148841 against the authoritative CMS record: view Gary Donald Kociszewski Jr. 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 2026-04-13.