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

Dr. John Harrison Martin, DO

Individual provider Family Medicine Physician · NPI 1114052008

Dr. John Harrison Martin, DO is a Family Medicine Physician in Nelson, New Hampshire. Practices as a sole proprietor. Licensed in New Hampshire.

Licensed in
NH
In the registry since
2007
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

111 Holt Farm Rd
Nelson, NH 03457-5405
Phone: (817) 938-0896
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 17227 (NH)

Record details

NPI number1114052008
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedFebruary 22, 2007
Last updated in NPPESMay 11, 2017
Mailing address111 Holt Farm Rd, Nelson, NH 03457-5405