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

William Mustelier, ACSW, LCSW

Individual provider Clinical Social Worker · NPI 1669473682

William Mustelier, ACSW, LCSW is a Clinical Social Worker in Miami, Florida. Practices as a sole proprietor. Licensed in Florida.

Licensed in
FL
In the registry since
2005
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

2645 SW 37th Ave Ste 505
Miami, FL 33133-2754
Phone: (305) 448-5111
Fax: (305) 448-5115
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence SW 4950 (FL)

Record details

NPI number1669473682
Entity typeIndividual (Type 1)
GenderMale
Credentials ACSW , LCSW
Sole proprietorYes
NPI enumeratedAugust 2, 2005
Last updated in NPPESJune 17, 2010

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