Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marshall Krizoa Nguessan, AUD.
Audiologist in Lawton, OK · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1689670077
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Registry record
Entity type Individual (Type 1)
Name Dr. Marshall Krizoa Nguessan
Credential AUD.
Sex Male
Practice address 1102 Se 36th St, Ste B, Lawton, OK, 73501
Phone (580) 351-2278
Fax (580) 353-0462
Enumeration date Jun 22, 2005
Last updated in NPPES Sep 7, 2023
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License 51685 (TX) Secondary
AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders.
About the AUD credential
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
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.
What specialty is Marshall Nguessan?
Marshall Nguessan 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-07.