Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ruth Sposili, APRN

Q: What is the NPI number for Ruth Sposili?

The National Provider Identifier (NPI) for Ruth Sposili is 1427168111, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Nurse Specialist in Milford, CT · enumerated 2006.

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

National Provider Identifier

1427168111

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Registry record

Entity type Individual (Type 1)

Name Ruth Sposili

Credential APRN

Sex Female

Practice address Milford, CT, 06460

Phone (203) 783-1192

Fax (203) 876-8466

Enumeration date Aug 30, 2006

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 002797 (CT) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002797 (CT) Secondary

364S00000X Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 002797 (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

Where does Ruth Sposili practice?

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

What is the NPI number for Ruth Sposili?

The National Provider Identifier (NPI) for Ruth Sposili is 1427168111, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.