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Tri-State Specialists, LLP

Orthopaedic Surgery Physician in Sioux City, IA · enumerated 2009 · authorized official Duane Nelson, President.

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

National Provider Identifier

1902134406

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Registry record

Entity type Organization (Type 2)
Legal business name Tri-State Specialists, LLP
Practice address 2730 Pierce St Ste 300, Sioux City, IA, 51104
Phone (712) 224-8677
Fax (712) 277-1662
Enumeration date Nov 23, 2009
Last updated in NPPES Oct 9, 2018

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary
207XS0106X Orthopaedic Hand Surgery Physician Allopathic & Osteopathic Physicians Secondary
207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians Secondary
207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians Secondary
208200000X Plastic Surgery Physician Allopathic & Osteopathic Physicians Secondary
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Secondary
363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Duane Nelson
Title President
Phone (712) 224-8677

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.

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Frequently asked questions

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.
What type of organization is Tri-State Specialists, LLP?
Tri-State Specialists, LLP is registered in NPPES as a Orthopaedic Surgery Physician (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-09.