Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcia K Nelsen, M.D.

Orthopaedic Surgery Physician in Viborg, SD · enumerated 2006.

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

National Provider Identifier

1629188289

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Registry record

Entity type Individual (Type 1)

Name Marcia K Nelsen

Credential M.D.

Sex Female

Practice address 45125 291st St, Viborg, SD, 57070

Phone (605) 760-3972

Fax (605) 326-5706

Enumeration date Aug 30, 2006

Last updated in NPPES Jul 9, 2012

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 36452 (IA) 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
1939991	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

Is NPI 1629188289 active?

Yes, as of the latest NPPES snapshot, NPI 1629188289 is active (record last updated 2012-07-09).

How do I verify Marcia Nelsen's NPI record?

Cross-check NPI 1629188289 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-09.