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

Dr. Karl J Karlson, MD

Individual provider Surgery Physician · NPI 1316939796

Dr. Karl J Karlson, MD is a Surgery Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2005.

Licensed in
MA
In the registry since
2005
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

732 Harrison Ave 3rd Fl
Boston, MA 02118-2309
Phone: (617) 638-5600
Fax: (617) 638-7228
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Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 47636 (MA)
Surgery Physician Taxonomy 208600000X · Licence 47636 (MA)

Record details

NPI number1316939796
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 22, 2005
Last updated in NPPESOctober 25, 2017

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