Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tracy M Gratton, R.D.H.
Dental Hygienist in Willimantic, CT · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518236975
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Registry record
Entity type Individual (Type 1)
Name Tracy M Gratton
Credential R.D.H.
Sex Female
Practice address 1315 Main St, Willimantic, CT, 06226
Phone (860) 450-7471
Fax (860) 450-7396
Enumeration date Dec 14, 2011
Last updated in NPPES Dec 14, 2011
Taxonomy & licenses
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 Tracy Gratton practice?
The practice location on file with NPPES is in Willimantic, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tracy Gratton?
The National Provider Identifier (NPI) for Tracy Gratton is 1518236975, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-14.