Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Avalon Dibner Fennessey, CPNP-PC

Pediatric Nurse Practitioner in Norwalk, CT · enumerated 2013 · practices at Swc Corporation.

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

National Provider Identifier

1487083978

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Registry record

Entity type Individual (Type 1)

Name Mrs. Avalon Dibner Fennessey

Credential CPNP-PC

Sex Female

Practice address 120 Connecticut Ave, Norwalk, CT, 06854

Phone (203) 899-1770

Enumeration date Nov 5, 2013

Last updated in NPPES Sep 30, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 113331 (CT) Secondary

163W00000X Registered Nurse Nursing Service Providers · License L1-0042593 (DE) Secondary

163W00000X Registered Nurse Nursing Service Providers · License RN61411 (ME) Secondary

163W00000X Registered Nurse Nursing Service Providers · License RN634654 (PA) Secondary

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 5598 (CT) Primary

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 Avalon Fennessey?

The National Provider Identifier (NPI) for Avalon Fennessey is 1487083978, a Type 1 (individual) record in the CMS NPPES registry.

Where does Avalon Fennessey practice?

The practice location on file with NPPES is in Norwalk, 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 2014-09-30.