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Riann Duffy, NP

Pediatric Nurse Practitioner in Watertown, CT · enumerated 2026 · practices at The Taft School.

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

National Provider Identifier

1134037690

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Registry record

Entity type Individual (Type 1)
Name Riann Duffy
Credential NP
Sex Female
Practice address 110 Woodbury Rd, Watertown, CT, 06795
Phone (860) 945-7762
Fax (860) 945-7766
Enumeration date Aug 27, 2026
Last updated in NPPES Aug 27, 2026

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 18211 (CT) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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

What is the NPI number for Riann Duffy?
The National Provider Identifier (NPI) for Riann Duffy is 1134037690, a Type 1 (individual) record in the CMS NPPES registry.
Where does Riann Duffy practice?
The practice location on file with NPPES is in Watertown, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-27.