Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph Driewer, PHD

Radiological Physics Physician in Sioux Falls, SD · enumerated 2026.

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

National Provider Identifier

1376499038

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Joseph Driewer

Credential PHD

Sex Male

Practice address 1309 W 17th St, Sioux Falls, SD, 57104

Phone (605) 328-8000

Enumeration date Mar 5, 2026

Last updated in NPPES Mar 5, 2026

Taxonomy & licenses

2085R0205X Radiological Physics Physician Allopathic & Osteopathic Physicians · License P6581 (AZ) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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

What specialty is Joseph Driewer?

Joseph Driewer is registered in NPPES with the primary taxonomy of Radiological Physics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-05.