Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Justin Carlson, RDCS

Sonography Radiologic Technologist in Sioux Falls, SD · enumerated 2014.

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

National Provider Identifier

1912321662

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Registry record

Entity type Individual (Type 1)

Name Justin Carlson

Credential RDCS

Sex Male

Practice address 6709 S Minnesota Ave, #203, Sioux Falls, SD, 57108

Phone (605) 274-2525

Fax (605) 274-0620

Enumeration date Feb 14, 2014

Last updated in NPPES Feb 14, 2014

Taxonomy & licenses

2471S1302X Sonography Radiologic Technologist Technologists, Technicians & Other Technical Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
119296	Other	-	ARDMS

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 specialty is Justin Carlson?

Justin Carlson is registered in NPPES with the primary taxonomy of Sonography Radiologic Technologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-14.