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

Individual provider Clinical Social Worker · NPI 1023291952

Mr. John Mattathil John, LCSW is a Clinical Social Worker in Brooklyn, New York. Qualified in 2004, 22 years ago. Practices with Mhh Psychology and Speech-Language Pathology Therapy Services PLLC, a 23-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
22
Licensed in
NY
In the registry since
2007
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

185 Montague St 2nd Fl
Brooklyn, NY 11201-3608
Phone: (718) 222-1701
Fax: (718) 222-1474
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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 049236 (NY)

Record details

NPI number1023291952
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedDecember 13, 2007
Last updated in NPPESDecember 13, 2007

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Mhh Psychology And Speech-Language Pathology Therapy Services Pllc — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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