Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thorir Sturla Ragnarsson, MD

Neurological Surgery Physician in Dakota Dunes, SD · enumerated 2005.

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

National Provider Identifier

1013910363

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Registry record

Entity type Individual (Type 1)

Name Thorir Sturla Ragnarsson

Credential MD

Sex Male

Practice address 575 N Sioux Point Rd, Dakota Dunes, SD, 57049

Phone (605) 217-2667

Fax (605) 217-2900

Enumeration date May 31, 2005

Last updated in NPPES Aug 6, 2010

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 4253 (SD) Primary

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

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

Where does Thorir Ragnarsson practice?

The practice location on file with NPPES is in Dakota Dunes, SD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Thorir Ragnarsson?

The National Provider Identifier (NPI) for Thorir Ragnarsson is 1013910363, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-06.