Ms. Margaret L De Haan

Addiction (Substance Use Disorder) Counselor


  1463 Flatbush Ave, Brooklyn
     New York, 11210-2428
  718-951-9009    718-951-9719 Maps & Directions
Ms. Margaret L De Haan is a Brooklyn, New York based counselor who is specialized as Addiction (Substance Use Disorder) Counselor. Active license number of Ms. Margaret L De Haan is 6802077521 for Social Worker in Michigan. Her current practice location is 1463 Flatbush Ave, Brooklyn. Patients can book an appointment with her at 718-951-9009.
Ms. Margaret L De Haan 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.
Complete Profile:
Ms. Margaret L De Haan speciality, credentials, practice address, contact phone number and fax are as below. Patients can directly walk in or can call on the below given phone number for appointment.
Name: Ms. Margaret L De Haan
Specialization: Addiction (Substance Use Disorder) Counselor
Gender:Female
Accepts Medicare Assignment:No
Practice Address:1463 Flatbush Ave, Brooklyn,
New York, 11210-2428
Phone:718-951-9009
Fax:718-951-9719
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 Number: 1699801282
NPI Enumeration Date: 26 Feb, 2007
NPI Last Update On: 08 Jul, 2007

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Ms. Margaret L De Haan are as mentioned below.
License NumberSpecializationStateStatus
6802077521Social Worker MichiganPrimary
19325Addiction (Substance Use Disorder) Counselor New YorkSecondary
000280Mental Health Counselor New YorkSecondary
6802077521Social Worker MichiganSecondary
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 3235 Emmons Ave Apt 301,
Brooklyn, New York
Zip: 11235-1139
Phone Number: 718-743-3651
Patients can reach Ms. Margaret L De Haan at 1463 Flatbush Ave, Brooklyn, New York or can call to book an appointment on 718-951-9009.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 June, 2025.

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