Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Duane C Mehlhaf, DC

Chiropractor in Vermillion, SD · enumerated 2006.

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

National Provider Identifier

1285725580

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Registry record

Entity type Individual (Type 1)

Name Dr. Duane C Mehlhaf

Credential DC

Sex Male

Practice address Vermillion, SD, 57069

Phone (605) 624-8805

Enumeration date Sep 28, 2006

Last updated in NPPES Sep 25, 2012

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 707 (SD) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
914	Other	-	MIDLANDS
0085700	Other	SD	BCBS
22283	Other	SD	SIOUX VALLEY HEALTH
7602850	Medicaid	SD	-
1755	Other	-	AVERA

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

How do I verify Duane Mehlhaf's NPI record?

Cross-check NPI 1285725580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1285725580 active?

Yes, as of the latest NPPES snapshot, NPI 1285725580 is active (record last updated 2012-09-25).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-09-25.