Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. William Harry Netzhammer III, MS, ATC, LAT

Athletic Trainer in Belleville, IL · enumerated 2014.

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

National Provider Identifier

1700282290

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. William Harry Netzhammer III

Credential MS, ATC, LAT

Sex Male

Practice address 2600 W Main St, Belleville, IL, 62226

Phone (618) 239-6109

Enumeration date Nov 10, 2014

Last updated in NPPES Jul 10, 2015

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 096.003564 (IL) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is William Netzhammer?

William Netzhammer is registered in NPPES with the primary taxonomy of Athletic Trainer. 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 2015-07-10.