Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark Jacob Sehnert, D.C.
Chiropractor in Florissant, MO · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205004462
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark Jacob Sehnert
Credential D.C.
Sex Male
Practice address 869 Saint Francois St, Florissant, MO, 63031
Phone (314) 839-8884
Fax (314) 839-8891
Enumeration date Feb 11, 2008
Last updated in NPPES May 22, 2015
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC 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
What is the NPI number for Mark Sehnert?
The National Provider Identifier (NPI) for Mark Sehnert is 1205004462, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Sehnert practice?
The practice location on file with NPPES is in Florissant, MO. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-05-22.