MARGARET A. O'CALLAGHAN ANP-BC, WHNP-BC
NPI 1881818110
Nurse Practitioner in Middleton, MA

Q: What is Margaret O'callaghan's NPI number?

The NPI number for Margaret O'callaghan is 1881818110. It was assigned to this individual provider in the NPPES registry on April 11, 2007. The provider is also known as Margaret A. Gaston Anp-Bc, Whnp-Bc.

Q: What is Margaret O'callaghan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Active since April 11, 2007

DYS NE HEALTH SERVICES, 33 GREGORY STREET, MIDDLETON, MA 01949(978) 716-1183(978) 304-4503 Get Directions Write a Review

NPPES record last updated: November 16, 2018. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Margaret A. O'callaghan Anp-bc, Whnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET A. O'CALLAGHAN ANP-BC, WHNP-BC (NPI 1881818110) is an individual nurse practitioner in Middleton, Massachusetts, licensed in Massachusetts (RN234033) and active in the NPI registry since April 2007.

NPPES Registry Identity

NPI1881818110

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMARGARET A. O'CALLAGHANCredential: ANP-BC, WHNP-BC

Location AddressDYS NE HEALTH SERVICES, 33 GREGORY STREETMiddleton, MA 01949

Mailing AddressDys Ne Health Services, 33 Gregory StreetMiddleton, MA 01949 · (978) 716-1183 · Fax (978) 304-4503

Phone(978) 716-1183

Fax(978) 304-4503

Sole ProprietorNo

Enumeration DateApril 11, 2007

Last NPPES UpdateNovember 16, 2018

✔ NPI 1881818110 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in MA · RN234033

Definition

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 234033 (MA)

DYS NE HEALTH SERVICES, Middleton, MA 01949

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Other Names 1

Former Name (1)Margaret A. Gaston Anp-bc, Whnp-bc

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret O'callaghan's NPI number?

The NPI number for Margaret O'callaghan is 1881818110. It was assigned to this individual provider in the NPPES registry on April 11, 2007. The provider is also known as Margaret A. Gaston Anp-Bc, Whnp-Bc.

Where is Margaret O'callaghan located?

Margaret O'callaghan practices at Dys NE Health Services 33 Gregory Street, Middleton, MA 01949. The listed phone number is (978) 716-1183.

What is Margaret O'callaghan's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

When was this NPI record last updated?

The NPPES record for Margaret O'callaghan was last updated on November 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.