Addiction Therapist

Mr. William Xavier Kelly, M.A., LMHC, LADC1

275 Millway, Barnstable, Massachusetts, 02630-1102

About Mr. William Xavier Kelly

Mr. William Xavier Kelly is a therapist based in Barnstable, Massachusetts who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Mr. William Xavier Kelly is 7274 for Mental Health Counselor in Massachusetts. His current practice location is 275 Millway, Barnstable. Patients can reach him at 860-324-9720. Mr. William Xavier Kelly is M.A., LMHC, LADC1 in Addiction (Substance Use Disorder) Counselor and his NPI number (Unique professional ID assigned by NPPES) is 1851519441.

Mr. William Xavier Kelly is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. He helps his clients by manage and overcome the psychological, emotional, and behavioral challenges related to substance use. Counselors also work closely with families and support systems to help them better understand their loved one’s illness. SUD counselors help to promote long-term sobriety, emotional stability, and overall mental wellness for both the individual and their family.

Practice Information

Mr. William Xavier Kelly speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Mr. William Xavier Kelly
Specialization Addiction (Substance Use Disorder) Counselor
Credentials M.A., LMHC, LADC1
Gender Male
Practice Address: 275 Millway,
Barnstable, MA - 02630-1102

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1851519441
NPI Enumeration Date: 22 Apr, 2007
NPI Last Update On: 09 Mar, 2010

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mr. William Xavier Kelly are as mentioned below.

License NumberSpecializationStateStatus
7274Mental Health Counselor MassachusettsPrimary
000668Addiction (Substance Use Disorder) Counselor ConnecticutSecondary
001149Marriage & Family Therapist ConnecticutSecondary
001719Professional Counselor ConnecticutSecondary
2304Addiction (Substance Use Disorder) Counselor MassachusettsSecondary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Mr. William Xavier Kelly
311 Village Grn N, Suite 160
Plymouth, MA - 02360-7761
Phone: 860-324-9720

Book an Appointment with Mr. William Xavier Kelly

To schedule an appointment, contact Mr. William Xavier Kelly at 275 Millway, Barnstable, Massachusetts or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mr. William Xavier Kelly:

William Xavier Kelly is a therapist specializing in Mental Health Counselor. He is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. He assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, William Xavier Kelly is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

William Xavier Kelly practices at 275 Millway, Barnstable, Massachusetts, 02630-1102.

To schedule an appointment with William Xavier Kelly, please contact the office at 860-324-9720.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.