Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Sivan Kassiff, MD

Individual provider Pediatrics Physician · NPI 1144719501

Sivan Kassiff, MD is a Pediatrics Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2018.

Licensed in
MA
In the registry since
2018
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

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 1028247 (MA)

Record details

NPI number1144719501
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2018
Last updated in NPPESSeptember 17, 2026
Certification dateSeptember 17, 2026

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