Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Victoria L. Knudsen, M.D.

Retina Specialist (Ophthalmology) Physician in Sioux Falls, SD · enumerated 2006.

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

National Provider Identifier

1174574800

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Registry record

Entity type Individual (Type 1)

Name Dr. Victoria L. Knudsen

Credential M.D.

Sex Female

Practice address 1301 S Cliff Ave, Suite 220, Sioux Falls, SD, 57105

Phone (605) 322-3790

Fax (605) 322-3791

Enumeration date May 15, 2006

Last updated in NPPES Feb 5, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A78941 (CA) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 8041 (SD) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 6051574-1205 (UT) Secondary

207WX0107X Retina Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 6051574-1205 (UT) 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
00A789410	Other	-	BLUE SHIELD
6300730	Medicaid	SD	-
S104992	Medicaid	SD	-
F899	Other	-	CHAMPUS

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 specialty is Victoria Knudsen?

Victoria Knudsen is registered in NPPES with the primary taxonomy of Retina Specialist (Ophthalmology) Physician. 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.

Other providers at this practice address

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Henry Travers Anatomic Pathology & Clinical Pathology Physician · Sioux Falls, SD NPI 1194723924 Diane Sneed Anatomic Pathology & Clinical Pathology Physician · Sioux Falls, SD NPI 1356349179 Raed Sulaiman Anatomic Pathology & Clinical Pathology Physician · Sioux Falls, SD NPI 1962400788 Fady Jamous Pulmonary Disease Physician · Sioux Falls, SD NPI 1912973785 Brian Hurley Pulmonary Disease Physician · Sioux Falls, SD NPI 1700852480 Avera Mckennan Physical Medicine & Rehabilitation Physician · Sioux Falls, SD NPI 1134195332 Thomas Ripperda Physical Medicine & Rehabilitation Physician · Sioux Falls, SD NPI 1720054091 Birgit Heeren Nurse Practitioner · Sioux Falls, SD NPI 1073564019

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-05.