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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. SHERINE MARY HASSEY-HALLIGAN NP
NPI 1003047473
Nurse Practitioner in Worcester, MA

Active since August 04, 2009PECOS Enrolled
55 LAKE AVE N, WORCESTER, MA 01655(508) 334-8585(508) 334-4799 Get Directions Write a Review

NPPES record last updated: October 19, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Ms. Sherine Mary Hassey-halligan Np NPPES

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

MS. SHERINE MARY HASSEY-HALLIGAN NP (NPI 1003047473) is an individual nurse practitioner in Worcester, Massachusetts, licensed in Massachusetts (RN274411) and active in the NPI registry since August 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1003047473
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. SHERINE MARY HASSEY-HALLIGANCredential: NP
Location Address55 LAKE AVE NWorcester, MA 01655-0002
Mailing AddressPo Box 415348Boston, MA 02241-5348 · (800) 225-8885 · Fax (508) 334-1977
Phone(508) 334-8585
Fax(508) 334-4799
Sole ProprietorNo
Enumeration DateAugust 4, 2009
Last NPPES UpdateOctober 19, 2026
NPPES CertifiedOctober 19, 2026
✔ NPI 1003047473 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 · RN274411
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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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Sherine Mary Hassey-halligan Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Sherine Hassey-halligan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Integrated Gastroenterology Consultants, PC
32 mi
Physical Therapist
20 RESEARCH PL, SUITE 220
North Chelmsford, MA 01863
  • Reassigned Medicare billing, Massachusetts enrollment
  • Medicare enrollment name: Integrated Gastroenterology Consultants, P.C.
  • 70 clinicians in this Medicare group
NPI 1396075123 (978) 459-6737

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01655 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Sherine Hassey-halligan's NPI number?

The NPI number for Sherine Hassey-halligan is 1003047473. It was assigned to this individual provider in the NPPES registry on August 4, 2009.

Where is Sherine Hassey-halligan located?

Sherine Hassey-halligan practices at 55 Lake Ave N, Worcester, MA 01655. The listed phone number is (508) 334-8585.

What is Sherine Hassey-halligan's specialty?

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

Is Sherine Hassey-halligan enrolled in Medicare?

Yes. Sherine Hassey-halligan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sherine Hassey-halligan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sherine Hassey-halligan reassigns Medicare benefits to Integrated Gastroenterology Consultants, PC (North Chelmsford, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sherine Hassey-halligan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sherine Hassey-halligan was last updated on October 19, 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.