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

William Joseph Sullivan, MFT

Individual provider Professional Counselor · NPI 1467509448

William Joseph Sullivan, MFT is a Professional Counselor in Sonora, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MFT — Marriage and Family Therapist
A therapist who treats couples and families.

See every abbreviation used in this directory →

Practice location Address checks out

101 S Forest Rd
Sonora, CA 95370-4895
Phone: (209) 533-0963
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence MFT 39899 (CA)

Record details

NPI number1467509448
Entity typeIndividual (Type 1)
GenderMale
Credentials MFT
Sole proprietorYes
NPI enumeratedJanuary 4, 2007
Last updated in NPPESJuly 8, 2007
Mailing address15442 Camino Del Parque Rd S, Sonora, CA 95370-9655