Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mrs. Nyssa Matson-Keats, LICSW

Individual provider Clinical Social Worker · NPI 1407018146

Mrs. Nyssa Matson-Keats, LICSW is a Clinical Social Worker in Lexington, Massachusetts. Qualified in 1990, 36 years ago. Practices with President and Fellows of Harvard College, a 95-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts.

Years since qualifying
36
Licensed in
MA
In the registry since
2008
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

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Practice location Address checks out

35 Bedford St
Lexington, MA 02420-4320
Phone: (781) 861-6767
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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 111996 (MA)

Record details

NPI number1407018146
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedJune 25, 2008
Last updated in NPPESJune 25, 2008

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice President And Fellows Of Harvard College — 95 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Lexington