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

John Francis Keaney III

Individual provider Internal Medicine Physician · NPI 1598384844

John Francis Keaney III is an Internal Medicine in Boston, Massachusetts. Graduated from Yale University School of Medicine in 2020, 6 years ago. Practices with Mass General Brigham Community Physicians Inc, a 422-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Massachusetts and New York.

Years since qualifying
6
Trained at
Yale University School of Medicine
Licensed in
MA, NY
In the registry since
2020
Specialties on file
3
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Practice location Address checks out

394 Harrison Ave
Boston, MA 02118-2212
Phone: (617) 903-5000
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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 1023073 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 327523 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1598384844
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 15, 2020
Last updated in NPPESJanuary 6, 2026
Certification dateJanuary 6, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2020 (6 years in practice)
Group practice Mass General Brigham Community Physicians Inc — 422 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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