What is William Nieves's NPI number?

William Nieves's National Provider Identifier (NPI) is 1457420473, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Nieves's specialty?

William Nieves is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is William Nieves located?

William Nieves's practice location on file with NPPES is 141 E Main St, Waterbury, CT 06702-2310.

What is William Nieves's phone number?

The practice phone number listed in the NPPES registry for William Nieves is (203) 574-9000.

Is William Nieves's NPI active?

Yes — William Nieves's NPI (1457420473) is active in the NPPES registry as of the last update on 2021-06-04.

IndividualActive

William Nieves, MSW,BA,LMSW

NPI 1457420473 · Social Worker · Waterbury, CT

William Nieves, MSW,BA,LMSW is a Social Worker provider in Waterbury, CT (NPI 1457420473).

Provider details

NPI number: 1457420473
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: MSW,BA,LMSW
Sex: Male
Sole proprietor: No
License: 000095 (CT)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 000095 (CT)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 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

141 E Main St

Waterbury, CT 06702-2310

Phone: (203) 574-9000

Fax: (203) 574-9006

Street-level locationGet directions

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Mailing address