Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Jeffrey David Gustin, DDS
Dentist in Fairfield, CT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154523264
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Registry record
Entity type Individual (Type 1)
Name Dr. Jeffrey David Gustin
Credential DDS
Sex Male
Practice address 320 Kings Hwy E, Fairfield, CT, 06825
Phone (203) 337-6262
Enumeration date Jun 1, 2007
Last updated in NPPES Dec 23, 2015
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 Jeffrey Gustin?
The National Provider Identifier (NPI) for Jeffrey Gustin is 1154523264, a Type 1 (individual) record in the CMS NPPES registry.
Where does Jeffrey Gustin practice?
The practice location on file with NPPES is in Fairfield, CT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Family Dental Group Fairfield, LLC Dentist · Fairfield, CT NPI 1043423593 Richard Delvecchio General Practice Dentistry · Fairfield, CT NPI 1164685459 Fairfield Family Dental Group PC Dentist · Fairfield, CT NPI 1710342050 City Medical of Upper East Side, Pllc Urgent Care Clinic/Center · Fairfield, CT NPI 1578378469
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-12-23.