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

Individual provider Pediatrics Physician · NPI 1215449830

Dr. Ryan Kobayashi, MD, MS is a Cardiovascular Disease (Cardiology) in Boston, Massachusetts. Qualified in 2015, 11 years ago. Practices with Boston Childrens Heart Foundation Inc, a 99-clinician group and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
11
Licensed in
CA, MA
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

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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

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 274639 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 146289 (CA)

Record details

NPI number1215449830
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorYes
NPI enumeratedNovember 5, 2017
Last updated in NPPESMarch 1, 2022
Certification dateMarch 1, 2022

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Also practisesPEDIATRIC MEDICINE
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Boston Childrens Heart Foundation Inc — 99 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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