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

Dr. William Stewart Blackwood, MD

Individual provider Family Medicine Physician · NPI 1346226107

Dr. William Stewart Blackwood, MD is a Family Medicine Physician in Merrimack, New Hampshire. Licensed in New Hampshire. Registered with an NPI since 2005.

Licensed in
NH
In the registry since
2005
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

382 Daniel Webster Hwy
Merrimack, NH 03054-4152
Phone: (603) 424-4181
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5860 (NH)

Record details

NPI number1346226107
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 22, 2005
Last updated in NPPESJuly 25, 2007

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