Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Morgan Taylor O'Neill, FNP

Family Nurse Practitioner in Cos Cob, CT · enumerated 2024 · practices at Doctors Office Ct Pllc.

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

National Provider Identifier

1780411165

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Registry record

Entity type Individual (Type 1)

Name Morgan Taylor O'Neill

Credential FNP

Sex Female

Practice address 40 E Putnam Ave Ste 1b, Cos Cob, CT, 06807

Phone (203) 489-5442

Enumeration date Sep 18, 2024

Last updated in NPPES Oct 21, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 13883 (CT) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Morgan O'Neill practice?

The practice location on file with NPPES is in Cos Cob, CT. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Morgan O'Neill?

The National Provider Identifier (NPI) for Morgan O'Neill is 1780411165, a Type 1 (individual) record in the CMS NPPES registry.

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Joshan Shajan Internal Medicine Physician · Cos Cob, CT NPI 1790043040 Doctors Office Ct Pllc Internal Medicine Physician · Cos Cob, CT NPI 1962997940

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-21.