Matthew Staniewicz, LMSW
NPI 1770125734 · Social Worker · Ansonia, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Staniewicz, LMSW is a Social Worker provider in Ansonia, CT (NPI 1770125734).
Provider details
- NPI number
- 1770125734
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- LMSW
- Sex
- Male
- Sole proprietor
- No
- License
- 4954 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
- 2019-10-11
- Last updated
- 2019-10-11
Frequently asked questions
- What is Matthew Staniewicz's NPI number?
- Matthew Staniewicz's National Provider Identifier (NPI) is 1770125734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Staniewicz's specialty?
- Matthew Staniewicz is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Matthew Staniewicz located?
- Matthew Staniewicz's practice location on file with NPPES is 121 Wakelee Avenue, Ansonia, CT 06401-1198.
- What is Matthew Staniewicz's phone number?
- The practice phone number listed in the NPPES registry for Matthew Staniewicz is (203) 503-3650.
- Does Matthew Staniewicz accept Medicare?
- Matthew Staniewicz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Staniewicz's NPI active?
- Yes — Matthew Staniewicz's NPI (1770125734) is active in the NPPES registry as of the last update on 2019-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.