Dr. Gregory J Duffner , DDS
Dentist - General Practice • Homewood, IL
Professional Overview & Biography Verified Profile Summary
Dr. Gregory Duffner, DDS is a registered healthcare professional specializing in Dentist - General Practice in Homewood, IL. Practice services are available at 18040 PARK AVE under active NPI credentials.
Practice Location & Contact Primary Location
18040 Park Ave
Homewood, IL 604301606
Specialty Benchmarks & Practice Insights
Comparative analytics for Dentist - General Practice in Homewood, IL
Practicing in Homewood, IL (5581 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-10-23NUCC Taxonomy Code: 1223G0001X
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Dentist - General Practice
Doctor of Dental Medicine
Dentist - General Practice
Doctor of Dental Surgery
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
NPI status registered as active in NPPES database
Registered at 18040 PARK AVE, HOMEWOOD, IL 604301606 (Tel: 7087986868)
Registered at 18040 PARK AVE, HOMEWOOD, IL 604301606 (Tel: 7087986868)
Recorded as GREGORY DUFFNER, D.D.S.
Dentist (License #019-019782 in IL)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
18040 Park Ave
Homewood, IL 604301606
Phone: 7087922779
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.