Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Brett R. Nielson, D.O.

Diagnostic Radiology Physician in Pittsburgh, PA · enumerated 2005.

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

National Provider Identifier

1215919311

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Registry record

Entity type Individual (Type 1)

Name Dr. Brett R. Nielson

Credential D.O.

Sex Male

Practice address Pittsburgh, PA, 15212

Phone (254) 383-7282

Enumeration date Nov 16, 2005

Last updated in NPPES Mar 17, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 05-34706 (KS) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 01058345A (IN) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
403000004	Other	KS	PTAN
10030307300	Medicaid	NE	-
30004568540001	Medicaid	KS	-

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

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.

What specialty is Brett Nielson?

Brett Nielson is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-17.