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

Katherine L Martz, MD

Individual provider Pediatrics Physician · NPI 1043609373

Katherine L Martz, MD is a Pediatrics Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2015.

Licensed in
MA
In the registry since
2015
Specialties on file
2
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

Pediatric Critical Care Medicine Physician (primary) Taxonomy 2080P0203X · Licence 286862 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 286862 (MA)

Record details

NPI number1043609373
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 9, 2015
Last updated in NPPESJune 10, 2025
Certification dateJune 10, 2025

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