Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Rebecca Greff, DMD
Dentist in Flora, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639471915
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Rebecca Greff
Credential DMD
Sex Female
Practice address 401 N Main St, Flora, IL, 62839
Phone (618) 662-2025
Enumeration date Nov 19, 2010
Last updated in NPPES Nov 19, 2010
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
Where does Rebecca Greff practice?
The practice location on file with NPPES is in Flora, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rebecca Greff?
The National Provider Identifier (NPI) for Rebecca Greff is 1639471915, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-19.