The William W Backus Hospital
NPI 1639135718 · General Acute Care Hospital · Norwich, CT
The William W Backus Hospital is a General Acute Care Hospital organization in Norwich, CT (NPI 1639135718).
Provider details
- NPI number
- 1639135718
- Entity type
- Organization
- Primary specialty
- General Acute Care HospitalHospitals
- Organization subpart
- No
- Authorized official
- Anthony Mastroianni, Regional Vp of Finance(860) 889-8331
Specialties & taxonomies
Hospitals
- Family Medicine Physician207Q00000X
Allopathic & Osteopathic Physicians
- Internal Medicine Physician207R00000X
Allopathic & Osteopathic Physicians
- Psychiatry Physician2084P0800X
Allopathic & Osteopathic Physicians
- Child & Adolescent Psychiatry Physician2084P0804X
Allopathic & Osteopathic Physicians
- Geriatric Psychiatry Physician2084P0805X
Allopathic & Osteopathic Physicians
- Nurse Practitioner363L00000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-26
- Last updated
- 2023-04-28
- Certified
- 2023-04-28
Frequently asked questions
- What is The William W Backus Hospital's NPI number?
- The William W Backus Hospital's National Provider Identifier (NPI) is 1639135718, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is The William W Backus Hospital?
- The William W Backus Hospital is classified in the NPPES registry as General Acute Care Hospital (Hospitals).
- Where is The William W Backus Hospital located?
- The William W Backus Hospital's practice location on file with NPPES is 326 Washington St, Norwich, CT 06360-2740.
- What is The William W Backus Hospital's phone number?
- The practice phone number listed in the NPPES registry for The William W Backus Hospital is (860) 889-8331.
- Who is the authorized official for The William W Backus Hospital?
- The authorized official listed on The William W Backus Hospital's NPPES record is Anthony Mastroianni, Regional Vp of Finance. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is The William W Backus Hospital's NPI active?
- Yes — The William W Backus Hospital's NPI (1639135718) is active in the NPPES registry as of the last update on 2023-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.