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

Koji Miwa, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1457226599

Koji Miwa, MD is a Cardiac Surgery in Boston, Massachusetts. Qualified in 2014, 12 years ago. Licensed in New York.

Years since qualifying
12
Licensed in
NY
In the registry since
2025
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

300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 345050 (NY)

Record details

NPI number1457226599
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 8, 2025
Last updated in NPPESJuly 14, 2026
Certification dateJuly 14, 2026
Mailing address300 Longwood Ave, Boston, MA 02115-5724

Medicare enrollment

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

Medicare specialtyCARDIAC SURGERY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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