Addiction Therapist

Dr. Mari Antoinette Alexander, PHD, LPC-MHSP

2805 River Dr, Columbia, South Carolina, 29201-1605

About Dr. Mari Antoinette Alexander

Dr. Mari Antoinette Alexander is a therapist based in Columbia, South Carolina who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Dr. Mari Antoinette Alexander is 2768 for Mental Health Counselor in Tennessee. Her current practice location is 2805 River Dr, Columbia. Patients can reach her at 617-777-6594 or can fax her at 617-221-3260. Dr. Mari Antoinette Alexander is PHD, LPC-MHSP in Addiction (Substance Use Disorder) Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1003184987.

Dr. Mari Antoinette Alexander is a licensed mental health therapist who help individuals struggling with addiction of alcohol, drug, or other substance use disorder. She helps her 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

Dr. Mari Antoinette Alexander 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 Dr. Mari Antoinette Alexander
Specialization Addiction (Substance Use Disorder) Counselor
Credentials PHD, LPC-MHSP
Gender Female
Practice Address: 2805 River Dr,
Columbia, SC - 29201-1605
Fax 617-221-3260

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 Number1003184987
NPI Enumeration Date: 07 Dec, 2011
NPI Last Update On: 29 Sep, 2025

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 Dr. Mari Antoinette Alexander are as mentioned below.

License NumberSpecializationStateStatus
2768Mental Health Counselor TennesseePrimary
2768Addiction (Substance Use Disorder) Counselor TennesseeSecondary

Mailing Address

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

Dr. Mari Antoinette Alexander
2805 River Dr,
Columbia, SC - 29201-1605
Phone: 615-400-2504
Fax: 615-447-1065

Book an Appointment with Dr. Mari Antoinette Alexander

To schedule an appointment, contact Dr. Mari Antoinette Alexander at 2805 River Dr, Columbia, South Carolina or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Mari Antoinette Alexander:

Mari Antoinette Alexander is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She 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, Mari Antoinette Alexander is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mari Antoinette Alexander practices at 2805 River Dr, Columbia, South Carolina, 29201-1605.

To schedule an appointment with Mari Antoinette Alexander, please contact the office at 617-777-6594.

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