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Mara Joy

Family Nurse Practitioner in Charlestown, MA · enumerated 2017.

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

National Provider Identifier

1043736663

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Registry record

Entity type Individual (Type 1)
Name Mara Joy
Sex Female
Practice address 1 Constitution Plz, Charlestown, MA, 02129
Phone (617) 724-5202
Enumeration date Aug 15, 2017
Last updated in NPPES Dec 1, 2020

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2314736 (MA) Secondary
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN01647 (RI) Primary

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.

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Frequently asked questions

Where does Mara Joy practice?
The practice location on file with NPPES is in Charlestown, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mara Joy?
The National Provider Identifier (NPI) for Mara Joy is 1043736663, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-01.