Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jeffrey C Kilroy, NP

Family Nurse Practitioner in Newburyport, MA · enumerated 2009.

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

National Provider Identifier

1346575289

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Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey C Kilroy

Credential NP

Sex Male

Practice address 21 Highland Ave, Suite 2, Newburyport, MA, 01950

Phone (978) 463-7770

Fax (978) 462-0220

Enumeration date Oct 9, 2009

Last updated in NPPES Jun 27, 2014

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN275429 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
110072703A	Medicaid	MA	-

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

Is NPI 1346575289 active?

Yes, as of the latest NPPES snapshot, NPI 1346575289 is active (record last updated 2014-06-27).

How do I verify Jeffrey Kilroy's NPI record?

Cross-check NPI 1346575289 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-06-27.