Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maryanne Hagar, APRN

Gerontology Nurse Practitioner in Shelton, CT · enumerated 2006.

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

National Provider Identifier

1255384228

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Registry record

Entity type Individual (Type 1)

Name Maryanne Hagar

Credential APRN

Sex Female

Practice address Six Corporate Drive, Suite 420, Shelton, CT, 06484

Phone (203) 925-9600

Fax (203) 926-0594

Enumeration date May 18, 2006

Last updated in NPPES Nov 21, 2017

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002546 (CT) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002546 (CT) Secondary

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002546 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

What is the NPI number for Maryanne Hagar?

The National Provider Identifier (NPI) for Maryanne Hagar is 1255384228, a Type 1 (individual) record in the CMS NPPES registry.

Where does Maryanne Hagar practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-21.