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

Dr. Karen Debra Leitner, MD

Individual provider Internal Medicine Physician · NPI 1043283658

Dr. Karen Debra Leitner, MD is an Internal Medicine Physician in Cambridge, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2006.

Licensed in
MA
In the registry since
2006
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

237 Hampshire St
Cambridge, MA 02139-1306
Phone: (617) 575-5570
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 228045 (MA)
Pediatrics Physician Taxonomy 208000000X · Licence 228045 (MA)

Record details

NPI number1043283658
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 13, 2006
Last updated in NPPESNovember 29, 2011

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