Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen R Hempelman, MD

Neurology Physician in Peoria, AZ · enumerated 2006.

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

National Provider Identifier

1235179334

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Registry record

Entity type Individual (Type 1)

Name Stephen R Hempelman

Credential MD

Sex Male

Practice address 13760 N 93rd Ave, Ste 101, Peoria, AZ, 85381

Phone (623) 876-3940

Fax (623) 977-4223

Enumeration date Jun 7, 2006

Last updated in NPPES Jan 23, 2008

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 10258 (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
229022	Medicaid	AZ	-

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 Stephen Hempelman's NPI record?

Cross-check NPI 1235179334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1235179334 active?

Yes, as of the latest NPPES snapshot, NPI 1235179334 is active (record last updated 2008-01-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-23.