Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Margaret A. O'Callaghan, ANP-BC, WHNP-BC

Individual provider Adult Health Nurse Practitioner · NPI 1881818110

Margaret A. O'Callaghan, ANP-BC, WHNP-BC is an Adult Health Nurse Practitioner in Middleton, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2007.

Licensed in
MA
In the registry since
2007
Specialties on file
2

Practice location Partly verified

Some contact details are missing from the federal record.

Dys NE Health Services 33 Gregory St
Middleton, MA 01949
Phone: (978) 716-1183
Fax: (978) 304-4503
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence RN234033 (MA)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 234033 (MA)

Record details

NPI number1881818110
Entity typeIndividual (Type 1)
GenderFemale
Credentials ANP-BC , WHNP-BC
Sole proprietorNo
NPI enumeratedApril 11, 2007
Last updated in NPPESNovember 16, 2018

Other providers in Middleton