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

Matthew Diamond, LMSW

Individual provider Clinical Social Worker · NPI 1275296618

Matthew Diamond, LMSW is a Clinical Social Worker in New Rochelle, New York. Qualified in 2021, 5 years ago. Licensed in Connecticut and New York.

Years since qualifying
5
Licensed in
CT, NY
In the registry since
2021
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

481 Main St
New Rochelle, NY 10801-6324
Phone: (914) 355-2440
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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 101235 (NY)
Clinical Social Worker Taxonomy 1041C0700X · Licence 5953 (CT)

Record details

NPI number1275296618
Entity typeIndividual (Type 1)
GenderMale
Credentials LMSW
Sole proprietorNo
NPI enumeratedOctober 21, 2021
Last updated in NPPESDecember 3, 2025
Certification dateDecember 3, 2025

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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