Addiction Therapist

Daniel Long

201 River St, Mattapan, Massachusetts, 02126-2713

About Daniel Long

Daniel Long is a therapist based in Mattapan, Massachusetts who is specialized in Addiction (Substance Use Disorder) Counselor. His current practice location is 201 River St, Mattapan. Patients can reach him at 617-308-2225. Daniel Long NPI number (Unique professional ID assigned by NPPES) is 1225945058.

Daniel Long 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

Daniel Long 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 Daniel Long
Specialization Addiction (Substance Use Disorder) Counselor
Gender Male
Practice Address: 201 River St,
Mattapan, MA - 02126-2713

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 Number1225945058
NPI Enumeration Date: 26 Aug, 2026
NPI Last Update On: 26 Aug, 2026

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 Daniel Long are as mentioned below.

License NumberSpecializationStateStatus
Addiction (Substance Use Disorder) Counselor MassachusettsPrimary

Mailing Address

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

Daniel Long
201 River St,
Mattapan, MA - 02126-2713
Phone: 617-308-2225

Book an Appointment with Daniel Long

To schedule an appointment, contact Daniel Long at 201 River St, Mattapan, Massachusetts or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Daniel Long:

Daniel Long is a therapist specializing in Addiction (Substance Use Disorder) Counselor. He 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.

Yes, Daniel Long is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Daniel Long practices at 201 River St, Mattapan, Massachusetts, 02126-2713.

To schedule an appointment with Daniel Long, please contact the office at 617-308-2225.

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