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

Erin Catherine Sullivan, AGPCNP-BC

Adult Health Nurse Practitioner in Methuen, MA · enumerated 2019.

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

National Provider Identifier

1265070783

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Registry record

Entity type Individual (Type 1)

Name Erin Catherine Sullivan

Credential AGPCNP-BC

Sex Female

Practice address Methuen, MA, 01844

Phone (978) 686-2807

Enumeration date Dec 16, 2019

Last updated in NPPES Oct 2, 2023

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

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2310113 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
RN2310113	Other	MA	OTHER

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 Erin Sullivan practice?

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

What is the NPI number for Erin Sullivan?

The National Provider Identifier (NPI) for Erin Sullivan is 1265070783, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-02.