Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Maria Frassinelli Sierra, LCSW

Individual provider Clinical Social Worker · NPI 1528839305

Mrs. Maria Frassinelli Sierra, LCSW is a Clinical Social Worker in Milford, Connecticut. Qualified in 1998, 28 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
28
Licensed in
CT
In the registry since
2024
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

415 Boston Post Rd Ste 3-1098
Milford, CT 06460-2578
Phone: (860) 428-4808
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 006023 (CT)

Record details

NPI number1528839305
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJanuary 11, 2024
Last updated in NPPESNovember 23, 2025
Certification dateNovember 23, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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