Mental Health Therapist

William Jackson Mann

367 Saint Marks Ave # 1068, Brooklyn, New York, 11238-2268

About William Jackson Mann

William Jackson Mann is a therapist based in Brooklyn, New York who is specialized in Mental Health Counselor. His current practice location is 367 Saint Marks Ave # 1068, Brooklyn. Patients can reach him at 134-723-4500 or can fax him at 332-334-3017. William Jackson Mann NPI number (Unique professional ID assigned by NPPES) is 1316894603.

William Jackson Mann 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.

Practice Information

William Jackson Mann 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 William Jackson Mann
Specialization Mental Health Counselor
Gender Male
Practice Address: 367 Saint Marks Ave # 1068,
Brooklyn, NY - 11238-2268
Fax 332-334-3017

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 Number1316894603
NPI Enumeration Date: 14 Mar, 2026
NPI Last Update On: 14 Mar, 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 William Jackson Mann are as mentioned below.

License NumberSpecializationStateStatus
Mental Health Counselor Primary

Mailing Address

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

William Jackson Mann
115 Lexow Ave,
Nyack, NY - 10960-1005
Phone: 845-480-0430

Book an Appointment with William Jackson Mann

To schedule an appointment, contact William Jackson Mann at 367 Saint Marks Ave # 1068, Brooklyn, New York or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Jackson Mann:

William Jackson Mann 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 Jackson Mann is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

William Jackson Mann practices at 367 Saint Marks Ave # 1068, Brooklyn, New York, 11238-2268.

To schedule an appointment with William Jackson Mann, please contact the office at 134-723-4500.

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