Addiction Therapist

Ms. Mary O'brien, LCSW, CASAC

1901 1st Ave, New York, New York, 10029-7494

About Ms. Mary O'brien

Ms. Mary O'brien is a therapist based in New York, New York who is specialized in Addiction (Substance Use Disorder) Counselor. Active license number of Ms. Mary O'brien is 085736 for Social Worker in New York. Her current practice location is 1901 1st Ave, New York. Patients can reach her at 212-423-8255 or can fax her at 212-423-6534. Ms. Mary O'brien is LCSW, CASAC in Addiction (Substance Use Disorder) Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1962848820.

Ms. Mary O'brien 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

Ms. Mary O'brien 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 Ms. Mary O'brien
Specialization Addiction (Substance Use Disorder) Counselor
Credentials LCSW, CASAC
Gender Female
Practice Address: 1901 1st Ave,
New York, NY - 10029-7494
Fax 212-423-6534

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 Number1962848820
NPI Enumeration Date: 20 May, 2013
NPI Last Update On: 26 Aug, 2020

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 Ms. Mary O'brien are as mentioned below.

License NumberSpecializationStateStatus
085736Social Worker New YorkPrimary
30264Addiction (Substance Use Disorder) Counselor New YorkSecondary
2916237Social Worker New YorkSecondary

Mailing Address

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

Ms. Mary O'brien
1901 1st Ave,
New York, NY - 10029-7494
Phone: 212-423-8255
Fax: 212-423-6534

Book an Appointment with Ms. Mary O'brien

To schedule an appointment, contact Ms. Mary O'brien at 1901 1st Ave, New York, New York or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Ms. Mary O'brien:

Ms. Mary O'brien is a therapist specializing in Social Worker. She A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.

Yes, Ms. Mary O'brien is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Ms. Mary O'brien practices at 1901 1st Ave, New York, New York, 10029-7494.

To schedule an appointment with Ms. Mary O'brien, please contact the office at 212-423-8255.

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