Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Duane K Nelson, MD, PC

Q: What type of organization is Duane K Nelson, MD, PC?

Duane K Nelson, MD, PC is registered in NPPES as a Specialist (its primary provider taxonomy).

Specialist in Sioux City, IA · enumerated 2007 · authorized official Duane Nelson, President.

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

National Provider Identifier

1285775403

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Registry record

Entity type Organization (Type 2)

Legal business name Duane K Nelson, MD, PC

Practice address 2800 Pierce St, Suite 101, Sioux City, IA, 51104

Phone (712) 224-8677

Fax (712) 277-1662

Enumeration date Feb 9, 2007

Last updated in NPPES Nov 13, 2009

Taxonomy & classification

174400000X Specialist Other Service Providers · License 21122 (IA) Primary

Authorized official

Name Duane Nelson

Title President

Phone (712) 224-8677

Other identifiers

Identifier	Type	State	Issuer
2181511	Medicaid	IA	-

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

What type of organization is Duane K Nelson, MD, PC?

Duane K Nelson, MD, PC is registered in NPPES as a Specialist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-13.