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

Mark E Brezinski, MD

Individual provider Cardiovascular Disease Physician · NPI 1013151422

Mark E Brezinski, MD is a Cardiovascular Disease Physician in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2009.

Licensed in
MA
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Brigham & Women's Hospital 75 Francis St
Boston, MA 02115 Not confirmed with CMS for 17 years — call before visiting
Phone: (617) 732-6911
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 72875 (MA)

Record details

NPI number1013151422
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 29, 2009
Last updated in NPPESApril 29, 2009

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients26
Services billed 26 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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