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

Mr. William Xavier Kelly, MA, LMHC, LADC1

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1851519441

Mr. William Xavier Kelly, MA, LMHC, LADC1 is an Addiction (Substance Use Disorder) Counselor in Barnstable, Massachusetts. Licensed in Connecticut and Massachusetts. Registered with an NPI since 2007.

Licensed in
CT, MA
In the registry since
2007
Specialties on file
5
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
LMHC — Licensed Mental Health Counselor
A licensed mental health counsellor; the title used in Florida, New York and Washington among others.

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Practice location Address checks out

275 Millway
Barnstable, MA 02630-1102
Phone: (860) 324-9720
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 7274 (MA)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 000668 (CT)
Marriage & Family Therapist Taxonomy 106H00000X · Licence 001149 (CT)
Professional Counselor Taxonomy 101YP2500X · Licence 001719 (CT)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 2304 (MA)

Record details

NPI number1851519441
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , LMHC , LADC1
Sole proprietorNo
NPI enumeratedApril 22, 2007
Last updated in NPPESMarch 9, 2010

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