Mrs. Allison Mesler
Mrs. Allison Mesler is a Speech-Language Pathologist provider (Speech-Language Pathologist) practicing in O Fallon, MO, registered in the NPPES registry with NPI 1023736063 since 2022.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1023736063 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mrs. Allison Mesler |
| Sex | Female |
| Practice address | O Fallon, MO, 63368 |
| Phone | 6362813382 |
| Enumeration date | 2022-08-16 |
| Last updated in NPPES | 2022-08-16 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 235Z00000X | Speech-Language Pathologist | Primary | 2022029681 | MO |
Copy-ready billing details
Provider: Allison Mesler NPI: 1023736063 Taxonomy: 235Z00000X (Speech-Language Pathologist) Address: O Fallon, MO, 63368
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1518558279 | Kelly Brazill | Individual | Occupational Therapist | O Fallon, MO |
Verify this record
Cross-check NPI 1023736063 against the authoritative CMS record: view Mrs. Allison Mesler 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 2022-08-16.