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

Emily Joy Casteen

Individual provider Internal Medicine Physician · NPI 1215875570

Emily Joy Casteen is an Internal Medicine Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2026.

Licensed in
MA
In the registry since
2026
Specialties on file
2

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 3020483 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (MA)

Record details

NPI number1215875570
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedMarch 24, 2026
Last updated in NPPESApril 28, 2026
Certification dateApril 28, 2026

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