Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael E Neilson

Anesthesiology Physician in Rapid City, SD · enumerated 2017.

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

National Provider Identifier

1215457064

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Registry record

Entity type Individual (Type 1)

Name Michael E Neilson

Sex Male

Practice address 353 Fairmont Blvd, Rapid City, SD, 57701

Phone (605) 343-1333

Fax (605) 343-6017

Enumeration date Jun 22, 2017

Last updated in NPPES Jul 9, 2021

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 12792 (SD) Primary

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 Michael Neilson's NPI record?

Cross-check NPI 1215457064 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1215457064 active?

Yes, as of the latest NPPES snapshot, NPI 1215457064 is active (record last updated 2021-07-09).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-07-09.