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

John Koreth, MBBSDPHIL

Individual provider Medical Oncology Physician · NPI 1396706503

John Koreth, MBBSDPHIL is a Hematology/Oncology in Boston, Massachusetts. Qualified in 1993, 33 years ago. Practices with Dana-Farber Cancer Institute, Inc, a 668-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
33
Licensed in
MA
In the registry since
2006
Specialties on file
2
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Practice location Address checks out

450 Brookline Ave
Boston, MA 02215-5450
Phone: (617) 632-2949
Fax: (617) 632-5168
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence 208706 (MA)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 208706 (MA)

Record details

NPI number1396706503
Entity typeIndividual (Type 1)
GenderMale
Credentials MBBSDPHIL
Sole proprietorNo
NPI enumeratedMarch 29, 2006
Last updated in NPPESMay 18, 2026
Certification dateMay 18, 2026
Mailing address44 Binney St, D1b 22, Boston, MA 02115-6013

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Dana-Farber Cancer Institute, Inc. — 668 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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