Dr. Marc Herbert Mcclellan, D.D.S.

Dr. Marc Herbert Mcclellan is a General Practice Dentistry provider (Dentist) practicing in Mobridge, SD, registered in the NPPES registry with NPI 1508928011 since 2006. The credential DDS stands for Doctor of Dental Surgery. Practices at Mcclellan-Swanson Dental Clinc, Inc. (listed at the same practice address in NPPES).

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NPI	1508928011
Entity type	Individual (Type 1)
Name	Dr. Marc Herbert Mcclellan
Credential	D.D.S.
Sex	Male
Practice address	509 N MAIN ST, Mobridge, SD, 57601
Phone	6058457222
Fax	6058455532
Enumeration date	2006-12-14
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	M711	SD

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

Copy-ready billing details

Provider: Marc Mcclellan, D.D.S.
NPI: 1508928011
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 509 N MAIN ST, Mobridge, SD, 57601

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1326127572	Mcclellan-Swanson Dental Clinc, Inc.	Organization	General Practice Dentistry	Mobridge, SD
1457413866	Thomas Swanson	Individual	General Practice Dentistry	Mobridge, SD

Verify this record

Cross-check NPI 1508928011 against the authoritative CMS record: view Dr. Marc Herbert Mcclellan on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 Marc Mcclellan?

Marc Mcclellan is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.