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

Dr. James Allen Diao, MD

Individual provider Internal Medicine Physician · NPI 1891548731

Dr. James Allen Diao, MD is an Internal Medicine Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2024.

Licensed in
MA
In the registry since
2024
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

75 Francis St
Boston, MA 02115-6106
Phone: (617) 732-5500
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 3017348 (MA)

Record details

NPI number1891548731
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2024
Last updated in NPPESAugust 24, 2024
Certification dateAugust 24, 2024

Other providers in Boston