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Mark A Steil, PAC

Physician Assistant in Yankton, SD · enumerated 2005 · practices at Lewis & Clark Mental Health Center.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043292204

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Registry record

Entity type Individual (Type 1)
Name Mark A Steil
Credential PAC
Sex Male
Practice address 1028 Walnut St, Lewis & Clark Bhs, Yankton, SD, 57078
Phone (605) 665-4606
Fax (605) 665-4673
Enumeration date Nov 15, 2005
Last updated in NPPES Aug 20, 2013

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 0198 (SD) Primary

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.

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Frequently asked questions

What is the NPI number for Mark Steil?
The National Provider Identifier (NPI) for Mark Steil is 1043292204, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Steil practice?
The practice location on file with NPPES is in Yankton, SD. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-08-20.