Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark M Wesely, DC

Chiropractor in Glen Ellyn, IL · enumerated 2006.

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

National Provider Identifier

1457320830

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mark M Wesely

Credential DC

Sex Male

Practice address 800 Roosevelt Rd, Bldg B Suite 112, Glen Ellyn, IL, 60137

Phone (630) 790-3335

Fax (630) 790-3345

Enumeration date Mar 16, 2006

Last updated in NPPES Mar 25, 2013

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 038009503 (IL) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
02232331	Other	IL	BCBSIL

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 Mark Wesely?

Mark Wesely is registered in NPPES with the primary taxonomy of Chiropractor. 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 2013-03-25.