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

David R Gagnon, MD

Individual provider Family Medicine Physician · NPI 1831145259

David R Gagnon, MD is a Family Medicine Physician in Portsmouth, New Hampshire. Works from 2 locations. Licensed in Maine and New Hampshire.

Licensed in
ME, 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.

See every abbreviation used in this directory →

Practice location Address checks out

100 Campus Dr Ste 12
Portsmouth, NH 03801-5892
Phone: (603) 422-8208
Fax: (603) 422-8218
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 19 Levesque Drive, Eliot, ME 03903-2079 — (207) 451-9600

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 7236 (NH)
Family Medicine Physician Taxonomy 207Q00000X · Licence 12177 (ME)

Record details

NPI number1831145259
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESAugust 18, 2021
Certification dateJuly 28, 2021

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