Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Eugene Kelly Gessert, AU.D.
Audiologist in O Fallon, MO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1457559080
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Registry record
Entity type Individual (Type 1)
Name Dr. Eugene Kelly Gessert
Credential AU.D.
Sex Male
Practice address 300 Winding Woods Dr Ste 208a, O Fallon, MO, 63366
Phone (314) 251-5850
Enumeration date Jul 5, 2007
Last updated in NPPES Jun 27, 2024
Taxonomy & licenses
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders.
About the AUD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 337455505 | Medicaid | MO | - |
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.
Frequently asked questions
What specialty is Eugene Gessert?
Eugene Gessert is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-27.