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

Dr. Rebecca Sinclair Johnston, PHD

Individual provider Psychologist · NPI 1821004706

Dr. Rebecca Sinclair Johnston, PHD is a Psychologist in Watertown, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

550 Belmont St Ste 36
Watertown, MA 02472-4910
Phone: (617) 924-0268
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 4889 (MA)

Record details

NPI number1821004706
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 31, 2006
Last updated in NPPESDecember 29, 2021
Certification dateDecember 29, 2021

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