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

Ryan Patrick Cassidy, MD

Individual provider Surgery Physician · NPI 1689377970

Ryan Patrick Cassidy, MD is a Surgery Physician in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2023
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

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

Surgery Physician (primary) Taxonomy 208600000X · Licence 3014465 (MA)

Record details

NPI number1689377970
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 24, 2023
Last updated in NPPESJune 10, 2023
Certification dateJune 10, 2023
Mailing address1760 Revere Beach Pkwy Apt 438, Everett, MA 02149-5965

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