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

John Gilbert Constantine Laing III

Individual provider Clinical Social Worker · NPI 1699258988

John Gilbert Constantine Laing III is a Clinical Social Worker in Boston, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2018.

In the registry since
2018

Practice location Address checks out

71 Greenwood Ave
Boston, MA 02136-1823
Phone: (617) 590-6531
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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

Record details

NPI number1699258988
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedSeptember 12, 2018
Last updated in NPPESSeptember 12, 2018

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