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

Melissa Tsoi, MD

Individual provider Internal Medicine Physician · NPI 1750919072

Melissa Tsoi, MD is an Internal Medicine Physician in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

800 Washington St
Boston, MA 02111-1552
Phone: (617) 636-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 285465 (MA)

Record details

NPI number1750919072
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 31, 2020
Last updated in NPPESJune 27, 2020
Certification dateJune 27, 2020

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