Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Sean Michael Hennessey, LMSW

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1518235175

Mr. Sean Michael Hennessey, LMSW is a Clinical Social Worker in Staten Island, New York. Qualified in 2012, 14 years ago. Practices with Pathways Neuropsychology Associates, a 9-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
14
Licensed in
NY
In the registry since
2011
Specialties on file
2
What do these letters mean?
LMSW — Licensed Master Social Worker
A master's-level social worker, usually practising under supervision.

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Practice location Address checks out

3911 Richmond Ave
Staten Island, NY 10312-5110
Phone: (718) 948-3232
Fax: (718) 966-6605
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X
Clinical Social Worker Taxonomy 1041C0700X · Licence 088250 (NY)

Record details

NPI number1518235175
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorYes
NPI enumeratedDecember 9, 2011
Last updated in NPPESApril 3, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Pathways Neuropsychology Associates — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Staten Island