Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marshall I Holifield, M.D.

Anesthesiology Physician in Sioux Falls, SD · enumerated 2006.

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

National Provider Identifier

1891707451

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Registry record

Entity type Individual (Type 1)

Name Marshall I Holifield

Credential M.D.

Sex Male

Practice address 1305 W 18th St # 6729, Sioux Falls, SD, 57105

Phone (605) 333-1000

Fax (712) 478-4086

Enumeration date Aug 12, 2006

Last updated in NPPES Feb 16, 2024

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 60601 (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

Is NPI 1891707451 active?

Yes, as of the latest NPPES snapshot, NPI 1891707451 is active (record last updated 2024-02-16).

How do I verify Marshall Holifield's NPI record?

Cross-check NPI 1891707451 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 2024-02-16.