Margaret Mary Slayback

LCSW-R, CASAC | Addiction (Substance Use Disorder) Counselor | 43+ years Exp


  707 Broadway, Massapequa
     New York, 11758-2327
  516-885-6255    Maps & Directions
Margaret Mary Slayback is a Massapequa, New York based counselor with 43 years of experience in Addiction (Substance Use Disorder) Counselor. She completed her graduation from Other in 1982. She accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Margaret Mary Slayback is R-031242 for Social Worker in New York. Her current practice location is 707 Broadway, Massapequa. Patients can book an appointment with her at 516-885-6255.
Margaret Mary Slayback 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:
Margaret Mary Slayback 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: Margaret Mary Slayback
Specialization: Addiction (Substance Use Disorder) Counselor
Gender:Female
Credentials: LCSW-R, CASAC
Experience: 43+ years
Medical School Attended:Other
Graduation Year:1982
Accepts Medicare Assignment:Yes
Practice Address:707 Broadway, Massapequa,
New York, 11758-2327
Phone:516-885-6255
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.
PAC ID: 5395048664
Enrollment ID: I20160120000871
NPI Number: 1801062252
NPI Enumeration Date: 06 May, 2008
NPI Last Update On: 06 May, 2008

Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Margaret Mary Slayback are as mentioned below.
License NumberSpecializationStateStatus
R-031242Social Worker New YorkPrimary
1648Addiction (Substance Use Disorder) Counselor New YorkSecondary
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name with which Margaret Mary Slayback is associated with along with the number of members in that group.
Organization Name (Group PAC ID) Members
Community Counseling And Lcsw Services (3577605617)23
New Horizon Counseling Center Inc (4880681295)66
Medicare Quality Reporting:
Medicare Quality Reporting consists of various programs like PQRS, EHR, MHI etc.
PQRS She does not participate in the Physician Quality Reporting System Incentive Program.
EHR She does not participate in the Electronic Health Record Incentive Program.
MHI She does not participate in the Million Hearts Initiative Program.
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
Address: 605 Warwick Ave,
Copiague, New York
Zip: 11726-3711
Phone Number: 516-885-6255
Patients can reach Margaret Mary Slayback at 707 Broadway, Massapequa, New York or can call to book an appointment on 516-885-6255.
*Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 June, 2025.

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