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Jeffrey Scott Mastroianni, DMD

Orthodontics and Dentofacial Orthopedics Dentistry in Glen Carbon, IL · enumerated 2006.

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

National Provider Identifier

1326147489

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Registry record

Entity type Individual (Type 1)
Name Jeffrey Scott Mastroianni
Credential DMD
Sex Male
Practice address 2220 S. State Route 157, Suite 125, Glen Carbon, IL, 62034
Phone (618) 288-0600
Fax (618) 288-8004
Enumeration date Sep 22, 2006
Last updated in NPPES Oct 24, 2014

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 021002018 (IL) Primary
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.

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Frequently asked questions

Where does Jeffrey Mastroianni practice?
The practice location on file with NPPES is in Glen Carbon, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jeffrey Mastroianni?
The National Provider Identifier (NPI) for Jeffrey Mastroianni is 1326147489, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-24.