Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark J. Beck, D.M.D.
Dentist in Wheaton, IL · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255886552
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark J. Beck
Credential D.M.D.
Sex Male
Practice address 223 W Illinois St, Wheaton, IL, 60187
Phone (630) 668-4500
Enumeration date Aug 17, 2016
Last updated in NPPES Aug 17, 2016
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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.
Frequently asked questions
What is the NPI number for Mark Beck?
The National Provider Identifier (NPI) for Mark Beck is 1255886552, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Beck practice?
The practice location on file with NPPES is in Wheaton, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-08-17.