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

Dr. Gregory Arnold Clark, MD

Individual provider Psychiatry Physician · NPI 1396899779

Dr. Gregory Arnold Clark, MD is a Psychiatry Physician in Belmont, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5 Watson Rd
Belmont, MA 02478-3924
Phone: (617) 484-5010
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 47684 (MA)

Record details

NPI number1396899779
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 22, 2007
Last updated in NPPESFebruary 4, 2008
Mailing address5 Watson Rd, Belmont, MA 02478-3924

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