Katarzyna Mariak
NPI 1366114126 · Social Worker · New Haven, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katarzyna Mariak is a Social Worker provider in New Haven, CT (NPI 1366114126).
Provider details
- NPI number
- 1366114126
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 4585 (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
4 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
- 2021-09-30
- Last updated
- 2021-09-30
- Certified
- 2021-09-30
Frequently asked questions
- What is Katarzyna Mariak's NPI number?
- Katarzyna Mariak's National Provider Identifier (NPI) is 1366114126, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katarzyna Mariak's specialty?
- Katarzyna Mariak is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is Katarzyna Mariak located?
- Katarzyna Mariak's practice location on file with NPPES is 400 Columbus Ave, New Haven, CT 06519-1233.
- What is Katarzyna Mariak's phone number?
- The practice phone number listed in the NPPES registry for Katarzyna Mariak is (203) 503-3000.
- Does Katarzyna Mariak accept Medicare?
- Katarzyna Mariak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katarzyna Mariak's NPI active?
- Yes — Katarzyna Mariak's NPI (1366114126) is active in the NPPES registry as of the last update on 2021-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.