Matthew Grennell, BCABA
Matthew Grennell is a Behavior Analyst provider (Behavior Analyst) practicing in Maitland, FL, registered in the NPPES registry with NPI 1346575263 since 2009.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1346575263 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Matthew Grennell |
| Credential | BCABA |
| Sex | Male |
| Practice address | Maitland, FL, 32751 |
| Phone | 4079280444 |
| Fax | 4076990444 |
| Enumeration date | 2009-10-09 |
| Last updated in NPPES | 2009-10-09 |
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: Matthew Grennell, BCABA NPI: 1346575263 Taxonomy: 103K00000X (Behavior Analyst) Address: Maitland, FL, 32751
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1801804471 | Anthony Schefstad | Individual | Mental Health Counselor | Maitland, FL |
| 1922334259 | Angela Fox | Individual | Behavior Analyst | Maitland, FL |
| 1083940316 | Sarah Courtney | Individual | Behavior Analyst | Maitland, FL |
| 1023345576 | Tammy Gillis Negri | Individual | Behavior Analyst | Maitland, FL |
| 1023349016 | Laura Lee | Individual | Mental Health Counselor | Maitland, FL |
| 1265730568 | Jennifer Cox | Individual | Counselor | Maitland, FL |
| 1194015164 | Lyma Dunbar | Individual | Clinical Social Worker | Maitland, FL |
| 1932494234 | Michelle Blanchette | Individual | Mental Health Counselor | Maitland, FL |
Verify this record
Cross-check NPI 1346575263 against the authoritative CMS record: view Matthew Grennell 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 2009-10-09.