Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Troy M Duininck, MD

Surgery Physician in Brainerd, MN · enumerated 2005.

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

National Provider Identifier

1801870886

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Registry record

Entity type Individual (Type 1)

Name Troy M Duininck

Credential MD

Sex Male

Practice address 2024 S 6th St, Brainerd, MN, 56401

Phone (218) 828-7100

Enumeration date Dec 2, 2005

Last updated in NPPES Jan 7, 2016

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 41868 (MN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
063402600	Medicaid	MN	-

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 Troy Duininck's NPI record?

Cross-check NPI 1801870886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1801870886 active?

Yes, as of the latest NPPES snapshot, NPI 1801870886 is active (record last updated 2016-01-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-07.