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

Katherine Twohig, LMSW

Individual provider Clinical Social Worker · NPI 1487078986

Katherine Twohig, LMSW is a Clinical Social Worker in New York, New York. Registered with an NPI since 2014.

In the registry since
2014
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

509 E 73rd St Apt 10
New York, NY 10021-4062 Not confirmed with CMS for 12 years — call before visiting
Phone: (203) 927-7479
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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 number1487078986
Entity typeIndividual (Type 1)
GenderFemale
Credentials LMSW
Sole proprietorNo
NPI enumeratedFebruary 5, 2014
Last updated in NPPESFebruary 5, 2014

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