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

Dr. Margaret I Stewart, MD

Individual provider Dermatology Physician · NPI 1649375072

Dr. Margaret I Stewart, MD is a Dermatology Physician in Portsmouth, New Hampshire. Licensed in Massachusetts and New Hampshire. Registered with an NPI since 2006.

Licensed in
MA, 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

155 Borthwick Ave Ste 201 West
Portsmouth, NH 03801-7156
Phone: (603) 433-9575
Fax: (603) 430-0104
Show map & directions

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

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence 11839 (NH)
Dermatology Physician Taxonomy 207N00000X · Licence 159113 (MA)

Record details

NPI number1649375072
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 13, 2006
Last updated in NPPESOctober 18, 2017

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