THE WILLIAM W BACKUS HOSPITAL
NPI 1467517235
General Acute Care Hospital in Norwich, CT

Active since December 22, 2006
326 WASHINGTON ST, NORWICH, CT 06360(860) 889-8331(860) 892-6983 Get Directions Write a Review

NPPES record last updated: April 28, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 4, 2023, Apr 17, 2020, Apr 3, 2020 and 1 more (4 updates tracked since 2017).

About The William W Backus Hospital NPPES

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

THE WILLIAM W BACKUS HOSPITAL (NPI 1467517235) is a healthcare organization registered as a general acute care hospital in Norwich, Connecticut and active in the NPI registry since December 2006. The organization lists Anthony Mastroianni, Regional Vp Of Finance, as its authorized official.

NPPES Registry Identity

NPI1467517235
Entity TypeOrganization
Primary Taxonomy282N00000X
Legal Business NameTHE WILLIAM W BACKUS HOSPITAL
Location Address326 WASHINGTON STNorwich, CT 06360-2740
Mailing Address326 Washington StNorwich, CT 06360-2740 · (860) 889-8331 · Fax (860) 892-6983
Fax(860) 892-6983
Organization SubpartNo
Authorized OfficialAnthony MastroianniRegional Vp Of Finance · (860) 889-8331
Enumeration DateDecember 22, 2006
Last NPPES UpdateApril 28, 20234 updates tracked since enumeration
NPPES CertifiedApril 28, 2023
✔ NPI 1467517235 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyGeneral Acute Care HospitalHospitals
Taxonomy Code282N00000X
License✔ Licensed in CT · 0037
Definition
An acute general hospital is an institution whose primary function is to provide inpatient diagnostic and therapeutic services for a variety of medical conditions, both surgical and non-surgical, to a wide population group. The hospital treats patients in an acute phase of illness or injury, characterized by a single episode or a fairly short duration, from which the patient returns to his or her normal or previous level of activity.
Also ListedClinic/Center · Emergency CareTaxonomy 261QE0002X · License 0037 (CT)
326 WASHINGTON ST, Norwich, CT 06360

Other Identifiers 1

Medicaid4025144CT

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

The William W Backus Hospital is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

428

Medicare enrollment records show 428 clinicians reassign Medicare billing to The William W Backus Hospital, which bills Medicare for the services they deliver. Of these, 45 practice at this address and 118 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 37

Nurse Practitioner83
Internal Medicine55
Psychiatry55
Emergency Medicine51
Clinical Social Worker35
Hematology/Oncology17
Neurology17
Obstetrics/Gynecology12
29 other specialties103

Nearest to this location (20)

See all 428
Mental Health Counselor
NPI 1821472291
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1285150292
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1134132178
326 WASHINGTON ST STE APG -01
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1225140650
326 WASHINGTON ST WILLIAM W BACKUS HOSPITAL
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1649727165
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Psychiatry
NPI 1346265592
326 WASHINGTON ST BACKUS HOSPITAL
Norwich, CT 06360
(860) 823-6321
✔ PECOS✔ Accepts MedicareSame address
Emergency Medicine
NPI 1497864029
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOSSame address
Internal Medicine
NPI 1841490299
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1386957504
326 WASHINGTON ST
Norwich, CT 06360
(860) 823-6321
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1790902807
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOSSame address
Emergency Medicine
NPI 1225529340
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Clinical Social Worker
NPI 1336906619
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Hospitalist
NPI 1073977062
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Clinical Psychologist
NPI 1801919055
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Physical Medicine and Rehabilitation
NPI 1447299383
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Mental Health Counselor
NPI 1265153175
326 WASHINGTON ST
Norwich, CT 06360
(860) 889-8331
✔ PECOS✔ Accepts MedicareSame address
Plastic and Reconstructive Surgery
NPI 1285662627
330 WASHINGTON ST SUITE 410
Norwich, CT 06360
(860) 425-5300
✔ PECOS✔ Accepts MedicareSame address
Neurology
NPI 1093145781
330 WASHINGTON ST STE 520
Norwich, CT 06360
(860) 889-3841
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1699711028
330 WASHINGTON ST SUITE 520
Norwich, CT 06360
(860) 889-3841
✔ PECOS✔ Accepts MedicareSame address
General Surgery
NPI 1811961915
330 WASHINGTON ST SUITE 420
Norwich, CT 06360
(860) 886-0660
✔ PECOSSame address
See all 428 clinicians

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

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 The William W Backus Hospital's NPI number?

The NPI number for The William W Backus Hospital is 1467517235. It was assigned to this organization in the NPPES registry on December 22, 2006.

Where is The William W Backus Hospital located?

The William W Backus Hospital is located at 326 Washington St, Norwich, CT 06360. The listed phone number is (860) 889-8331.

What is The William W Backus Hospital's specialty?

The primary specialty registered for this NPI is General Acute Care Hospital with taxonomy code 282N00000X.

Is The William W Backus Hospital enrolled in Medicare?

Yes. The William W Backus Hospital is registered in the Medicare PECOS enrollment system.

What insurance does The William W Backus Hospital accept?

Health plans from WellSense Health Plan list The William W Backus Hospital as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for The William W Backus Hospital was last updated on April 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.