NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Denis Miller, D.D.S.

Oral and Maxillofacial Surgery (Dentist) in Sioux Falls, SD · enumerated 2006 · practices at Siouxland Oral Surgery.

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

National Provider Identifier

1821069253

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Denis Miller
Credential D.D.S.
Sex Male
Practice address 6401 S Minnesota Ave, Sioux Falls, SD, 57108
Fax (605) 332-4550
Enumeration date Feb 1, 2006
Last updated in NPPES Jun 18, 2015

Taxonomy & licenses

1223S0112X Oral and Maxillofacial Surgery (Dentist) Dental Providers · License M908 (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
8000420 Medicaid SD -

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 → Validate an NPI →

Frequently asked questions

Is NPI 1821069253 active?
Yes, as of the latest NPPES snapshot, NPI 1821069253 is active (record last updated 2015-06-18).
How do I verify Denis Miller's NPI record?
Cross-check NPI 1821069253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-18.