Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Anthony Paul Fiegen, MD

Orthopaedic Surgery Physician in Sioux Falls, SD · enumerated 2018 · practices at Manus, LLC.

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

National Provider Identifier

1659877736

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Registry record

Entity type Individual (Type 1)

Name Anthony Paul Fiegen

Credential MD

Sex Male

Practice address 810 E 23rd St, Sioux Falls, SD, 57105

Phone (605) 331-5890

Fax (605) 271-7617

Enumeration date Apr 5, 2018

Last updated in NPPES May 6, 2024

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 29142 (MN) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 65835 (MN) Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 15341 (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.

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Frequently asked questions

How do I verify Anthony Fiegen's NPI record?

Cross-check NPI 1659877736 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1659877736 active?

Yes, as of the latest NPPES snapshot, NPI 1659877736 is active (record last updated 2024-05-06).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-06.