Maria Sierra, LCSW
NPI 1528839305 · Clinical Social Worker · Milford, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Sierra, LCSW is a Clinical Social Worker provider in Milford, CT (NPI 1528839305).
Provider details
- NPI number
- 1528839305
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 006023 (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
2 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
- 2024-01-11
- Last updated
- 2025-11-23
- Certified
- 2025-11-23
Frequently asked questions
- What is Maria Sierra's NPI number?
- Maria Sierra's National Provider Identifier (NPI) is 1528839305, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Sierra's specialty?
- Maria Sierra is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Maria Sierra located?
- Maria Sierra's practice location on file with NPPES is 415 Boston Post Rd Ste 3-1098, Milford, CT 06460-2578.
- What is Maria Sierra's phone number?
- The practice phone number listed in the NPPES registry for Maria Sierra is (860) 428-4808.
- Does Maria Sierra accept Medicare?
- Maria Sierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Sierra's NPI active?
- Yes — Maria Sierra's NPI (1528839305) is active in the NPPES registry as of the last update on 2025-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.