John Marshall
John Marshall is a Specialist provider (Specialist) practicing in Ardmore, OK, registered in the NPPES registry with NPI 1922465608 since 2016. Practices at Ardmore Hearing Aid Service, Inc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1922465608 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John Marshall |
| Sex | Male |
| Practice address | 903 GRAND AVE, Ardmore, OK, 73401 |
| Phone | 5802237771 |
| Enumeration date | 2016-01-26 |
| Last updated in NPPES | 2016-01-26 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 1062 | OK |
Copy-ready billing details
Provider: John Marshall NPI: 1922465608 Taxonomy: 174400000X (Specialist) Address: 903 GRAND AVE, Ardmore, OK, 73401
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1447549969 | Ardmore Hearing Aid Service, Inc | Organization | Hearing Aid Equipment | Ardmore, OK |
Verify this record
Cross-check NPI 1922465608 against the authoritative CMS record: view John Marshall 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 2016-01-26.