Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Matthew Mark Witkowski, DMD
Endodontics in South Barrington, IL · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508366717
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Registry record
Entity type Individual (Type 1)
Name Dr. Matthew Mark Witkowski
Credential DMD
Sex Male
Practice address 20 Executive Ct Ste 1, South Barrington, IL, 60010
Phone (847) 550-3460
Enumeration date Feb 14, 2018
Last updated in NPPES Jul 22, 2025
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License RES-30652 (IA) Secondary
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
Where does Matthew Witkowski practice?
The practice location on file with NPPES is in South Barrington, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Matthew Witkowski?
The National Provider Identifier (NPI) for Matthew Witkowski is 1508366717, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-22.