Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark H Henline, DDS

Dentist in Rapid City, SD · enumerated 2006.

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

National Provider Identifier

1730107491

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Registry record

Entity type Individual (Type 1)

Name Mark H Henline

Credential DDS

Sex Male

Practice address 350 Pine St, Rapid City, SD, 57701

Phone (605) 721-8939

Fax (605) 721-8998

Enumeration date Jul 18, 2006

Last updated in NPPES Feb 4, 2026

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 30-017513 (OH) Secondary

122300000X Dentist Dental Providers · License D1267 (SD) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
0542952	Medicaid	OH	-

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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

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 Mark Henline?

Mark Henline is registered in NPPES with the primary taxonomy of Dentist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-04.