MS. MARY CASTONGUAY NP
NPI 1104845601
Nurse Practitioner in Worcester, MA

Q: What is Mary Castonguay's NPI number?

The NPI number for Mary Castonguay is 1104845601. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Q: What is Mary Castonguay's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mary Castonguay was last updated on December 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.

Active since July 18, 2006

55 LAKE AVE N, DEPARTMENT OF PULMONARY MEDICINE, WORCESTER, MA 01655(508) 856-2781(508) 856-2235 Get Directions Write a Review

NPPES record last updated: December 2, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Ms. Mary Castonguay Np NPPES

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

MS. MARY CASTONGUAY NP (NPI 1104845601) is an individual nurse practitioner in Worcester, Massachusetts, licensed in Massachusetts (241433) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1104845601

Entity TypeIndividualFemale

Primary Taxonomy363L00000X

Provider Legal NameMS. MARY CASTONGUAYCredential: NP

Location Address55 LAKE AVE N, DEPARTMENT OF PULMONARY MEDICINEWorcester, MA 01655-0002

Mailing AddressPo Box 415348Boston, MA 02241-5348

Phone(508) 856-2781

Fax(508) 856-2235

Sole ProprietorNo

Enumeration DateJuly 18, 2006

Last NPPES UpdateDecember 2, 2010

✔ NPI 1104845601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363L00000X

License✔ Licensed in MA · 241433

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.

55 LAKE AVE N, Worcester, MA 01655

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Other Identifiers 3

Medicare UPINQ70482

Medicare PINNP538801MA

Medicaid0799556MA

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.

HILLARY R. IRONS MD

Emergency Medicine

55 LAKE AVE N
WORCESTER, MA 01655

Worcester County (508) 421-1400

MS. EILEEN A. DUHAMEL NP

Nurse Practitioner

55 LAKE AVE N, DEPARTMENT OF RADIOLOGY
WORCESTER, MA 01655

Worcester County (508) 334-2710

EWA HRYNISZYN CRNA

Nurse Anesthetist, Certified Registered

55 LAKE AVE N, DEPARTMENT OF ANESTHESIOLOGY
WORCESTER, MA 01655

Worcester County (508) 334-3271

HELEN COPSEY PA-C

Physician Assistant

55 LAKE AVE N
WORCESTER, MA 01655

Worcester County (508) 334-8585

DR. ADEPEJU GBADEBO CHAMPION M.D.

Internal Medicine

55 LAKE AVE N
WORCESTER, MA 01655

Worcester County (508) 334-2731

SOWMYA KORAPATI

Internal Medicine (Hematology & Oncology)

55 LAKE AVE N
WORCESTER, MA 01655

Worcester County (508) 334-3550

LAYLA FAKHRZADEH M.D.

Anesthesiology

55 LAKE AVE N, ANESTHESIOLOGY
WORCESTER, MA 01655

Worcester County (508) 334-3271

YOONYIE CHO M.D.

Anesthesiology

55 LAKE AVE N
WORCESTER, MA 01655

Worcester County (508) 334-1000

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 Castonguay's NPI number?

The NPI number for Mary Castonguay is 1104845601. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Mary Castonguay located?

Mary Castonguay practices at 55 Lake Ave N Department Of Pulmonary Medicine, Worcester, MA 01655. The listed phone number is (508) 856-2781.

What is Mary Castonguay'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 Mary Castonguay was last updated on December 2, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.