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

Peter Niemczyk, MD

Urology Physician in Show Low, AZ · enumerated 2005.

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

National Provider Identifier

1518953041

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Peter Niemczyk

Credential MD

Sex Male

Practice address Show Low, AZ, 85901

Phone (928) 537-0111

Fax (623) 582-9666

Enumeration date Sep 20, 2005

Last updated in NPPES May 21, 2010

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

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 34718 (AZ) 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
2Z2716	Other	AZ	HEALTHNET
477100	Medicaid	AZ	-
5135633	Other	-	AETNA
674661	Other	-	CIGNA
P00378324	Other	-	RAILROAD MEDICARE
AZ0156450	Other	AZ	BLUE CROSS BLUE SHIELD

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 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 Peter Niemczyk?

Peter Niemczyk is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-21.