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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MS. ALEXANDRA CASTILLO
NPI 1710379870
Social Worker in Charlestown, MA

Active since February 26, 2015
15 TUFTS ST, CHARLESTOWN, MA 02129(857) 238-1100 Get Directions Write a Review

NPPES record last updated: October 1, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Alexandra Castillo NPPES

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

MS. ALEXANDRA CASTILLO (NPI 1710379870) is an individual social worker in Charlestown, Massachusetts and active in the NPI registry since February 2015.

NPPES Registry Identity

NPI1710379870
Entity TypeIndividualFemale
Primary Taxonomy104100000X
Provider Legal NameMS. ALEXANDRA CASTILLO
Location Address15 TUFTS STCharlestown, MA 02129-2711
Mailing Address15 Tufts StCharlestown, MA 02129-2711 · (857) 238-1100
Phone(857) 238-1100
Sole ProprietorNo
Enumeration DateFebruary 26, 2015
Last NPPES UpdateOctober 1, 2026
NPPES CertifiedOctober 1, 2026
✔ NPI 1710379870 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
15 TUFTS ST, Charlestown, MA 02129
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIA TATUM MCANDREW MSN, MPH, FNP-BC
Nurse Practitioner (Family)
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (587) 238-1100
JEFFREY HO O.D.
Optometrist
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (857) 238-1161
ALEXIS NICOLE DICKINSON NP
Nurse Practitioner (Psychiatric/Mental Health)
15 TUFTS ST
BOSTON, MA 02129
Suffolk County (857) 238-1100
AIDAN LALIN SCHMIDTBERGER
Social Worker (Clinical)
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (857) 238-1181
AMIRA WALTON MSW
Social Worker (Clinical)
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (857) 238-1100
JULIE RAFFERTY
Registered Nurse
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (857) 238-1100
JESSICA ADAMS
Registered Nurse
15 TUFTS ST
BOSTON, MA 02129
Suffolk County (857) 238-1100
MRS. ALICE COAKLEY CURRIE FNP-BC
Nurse Practitioner (Family)
15 TUFTS ST
CHARLESTOWN, MA 02129
Suffolk County (857) 238-1100

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 Alexandra Castillo's NPI number?

The NPI number for Alexandra Castillo is 1710379870. It was assigned to this individual provider in the NPPES registry on February 26, 2015.

Where is Alexandra Castillo located?

Alexandra Castillo practices at 15 Tufts St, Charlestown, MA 02129. The listed phone number is (857) 238-1100.

What is Alexandra Castillo's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Alexandra Castillo was last updated on October 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days 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.