NPI Portal NPI Lookup & Verification

Deirdre M Clark, NP

Deirdre M Clark is a Adult Health Nurse Practitioner provider (Nurse Practitioner) practicing in Willimantic, CT, registered in the NPPES registry with NPI 1811251713 since 2012. The credential NP stands for Nurse Practitioner.

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NPI 1811251713
Entity type Individual (Type 1)
Name Deirdre M Clark
Credential NP
Sex Female
Practice address 5 FOUNDERS ST STE 102, Willimantic, CT, 06226
Phone 8604562898
Enumeration date 2012-06-26
Last updated in NPPES 2023-04-25

Taxonomy & licenses

Taxonomy code Specialty Primary License State
363LA2200X Adult Health Nurse Practitioner Secondary NPP37710 RI
363LG0600X Gerontology Nurse Practitioner Secondary NPP37710 RI
363LA2200X Adult Health Nurse Practitioner Primary 7460 CT

NP — Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Copy-ready billing details
Provider: Deirdre Clark, NP
NPI: 1811251713
Taxonomy: 363LA2200X (Adult Health Nurse Practitioner)
Address: 5 FOUNDERS ST STE 102, Willimantic, CT, 06226

Other providers at this practice address

NPI Name Type Specialty Location
1487638409 Mark Jacobs Individual Cardiovascular Disease Physician Willimantic, CT
1114907029 Regina Stuart Individual Surgery Physician Willimantic, CT
1548405871 Huseyin Nail Aydin Individual Surgery Physician Willimantic, CT
1720569379 Jamie Charron Individual Family Nurse Practitioner Willimantic, CT
1942198536 Jennifer Misuraca Individual Acute Care Nurse Practitioner Willimantic, CT

Verify this record

Cross-check NPI 1811251713 against the authoritative CMS record: view Deirdre M Clark on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Deirdre Clark?
Deirdre Clark is registered in NPPES with the primary taxonomy of Adult Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2023-04-25.