Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Crewson Andrew Martin, MSW, L-CSW

Individual provider Psychologist · NPI 1659318848

Crewson Andrew Martin, MSW, L-CSW is a Clinical Social Worker in Port Jefferson, New York. Qualified in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in New York.

Years since qualifying
39
Licensed in
NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

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Practice location Address checks out

210 Liberty Ave
Port Jefferson, NY 11777-2010
Phone: (631) 880-2531
Fax: (631) 476-1835
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence R038729-1 (NY)
Psychologist Taxonomy 103T00000X · Licence R038729-1 (NY)

Record details

NPI number1659318848
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW , L-CSW
Sole proprietorYes
NPI enumeratedMay 31, 2006
Last updated in NPPESNovember 16, 2022
Certification dateNovember 16, 2022

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Port Jefferson