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

Dr. Matthew James Masewic, MD

Individual provider Addiction Medicine (Family Medicine) Physician · NPI 1144248352

Dr. Matthew James Masewic, MD is an Addiction Medicine (Family Medicine) Physician in Concord, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2006.

Licensed in
NH
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

36 Clinton St
Concord, NH 03301-2359
Phone: (603) 271-5482
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 12217 (NH)
Addiction Medicine (Family Medicine) Physician Taxonomy 207QA0401X · Licence 12217 (NH)

Record details

NPI number1144248352
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 17, 2006
Last updated in NPPESJune 21, 2024
Certification dateJune 21, 2024

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