Sean Michael Hennessey, LMSW
Addiction (Substance Use Disorder) Counselor · Staten Island, NY
Sean Michael Hennessey, LMSW is an addiction (substance use disorder) counselor with a practice address in Staten Island, New York, and NPI 1518235175, issued on Dec 9, 2011. Check the license (New York 088250, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sean Michael Hennessey
- Credential
- LMSW
- Primary taxonomy
- Addiction (Substance Use Disorder) Counselor 101YA0400X
- License number
- 088250 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3911 Richmond Ave, Staten Island, NY 10312
- Phone
- (718) 948-3232
- Enumerated
- Dec 9, 2011
- Record last updated
- Apr 3, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (718) 966-6605
- Medicare enrollment
- Enrolled (PECOS I20171012003048); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest addiction (substance use disorder) counselor records → All 5,180 in New York → Look up another NPI →
Also registered at 3911 Richmond Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Giana AbbruzzeseMental Health Counselor1811456536
- Elisa AbreuCounselor1740748854
- Olga AfanasevaSocial Worker1114769908
- Patrick AlbaranoStudent in an Organized Health Care Education/Training Program1841085107
- Alexandra AnastasioAddiction (Substance Use Disorder) Counselor1417497629
- Vincent BuetiMental Health Counselor1710499934
Verify Sean Michael Hennessey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 088250Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Pathways Neuropsychology AssociatesManahawkin, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Michael Hennessey among 5,180 addiction (substance use disorder) counselor records in New York
Sean Michael Hennessey, LMSW is one of 5,180 addiction (substance use disorder) counselor records with a practice address in New York. under 1% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 24% of them.
- NPI issued2011 · 24% of these records are older, 71% newer
- In a Medicare fileYes · under 1% of these records are
- In the CMS Doctors and Clinicians fileYes · 1% of these records are
- Graduated2012 · median 2012 among the 75 with a school on file
- Record last updated2014 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YA0400X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
194 addiction (substance use disorder) counselor records list a practice address in Staten Island
They are 194 of the 12,351 NPPES records with a practice address in Staten Island, and 5,180 addiction (substance use disorder) counselor records in New York.
All 5,180 in New York → Every provider in Staten Island → Addiction (Substance Use Disorder) Counselor nationwide →
The 8 addiction (substance use disorder) counselor records with the nearest ZIP codes
- Raymond Cosentino, MSEDStaten Island, NY 103121952743254
- Julia HandelStaten Island, NY 103121205240405
- Barbara Kelly, CASACTStaten Island, NY 103121053689471
- Denise MagroneStaten Island, NY 103121760750228
- Christine MenakeStaten Island, NY 103121831575273
- Kathryn O'NeillStaten Island, NY 103121881962207
- Louisa Odones, CRCStaten Island, NY 103121659764520
- Kerri QuinnStaten Island, NY 103121598164568
Common questions
What is Sean Michael Hennessey, LMSW's NPI number?
Sean Michael Hennessey, LMSW's National Provider Identifier (NPI) is 1518235175, issued on Dec 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Sean Michael Hennessey, LMSW located?
The NPPES record lists a practice address at 3911 Richmond Ave, Staten Island, NY, 10312. Phone: (718) 948-3232. Providers update this record themselves, so call before visiting.
How can I verify Sean Michael Hennessey, LMSW's license?
NPPES lists New York license number 088250, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.