Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MS. MARY C CASSIDY N.P.
NPI 1568438729
Nurse Practitioner - Adult Health in Brookline, MA

Active since February 27, 2006
11 KENT ST, BROOKLINE, MA 02445(617) 447-2147(617) 264-9763 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Mary C Cassidy N.p. NPPES

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

MS. MARY C CASSIDY N.P. (NPI 1568438729) is an individual adult health provider in Brookline, Massachusetts, licensed in Massachusetts (129190) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1568438729
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMS. MARY C CASSIDYCredential: N.P.
Location Address11 KENT STBrookline, MA 02445-7901
Mailing Address90 Readville StBoston, MA 02136-2040 · (617) 361-1173 · Fax (617) 361-1173
Fax(617) 264-9763
Sole ProprietorNo
Enumeration DateFebruary 27, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1568438729 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License Licensed in MA · 129190
11 KENT ST, Brookline, MA 02445

Other Identifiers 2

Medicaid0347001MA
OtherNP2539MA · Bcbs

Other Providers at the Same Location NPPES 3

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

Family Medicine (Addiction Medicine)
11 KENT ST
BROOKLINE, MA 02445
Psychiatry & Neurology (Psychiatry)
11 KENT ST
BROOKLINE, MA 02445
Family Medicine (Addiction Medicine)
11 KENT ST
BROOKLINE, MA 02445

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 Mary Cassidy's NPI number?

The NPI number for Mary Cassidy is 1568438729. It was assigned to this individual provider in the NPPES registry on February 27, 2006.

Where is Mary Cassidy located?

Mary Cassidy practices at 11 Kent St, Brookline, MA 02445. The listed phone number is (617) 447-2147.

What is Mary Cassidy's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

When was this NPI record last updated?

The NPPES record for Mary Cassidy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.