IndividualActive
John Mcmahon, DO
NPI 1821258062 · Sports Medicine (Internal Medicine) Physician · Portsmouth, NH
Provider details
- NPI number
- 1821258062
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 16235 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Practice location
1900 Lafayette Rd
Suite a
Portsmouth, NH 03801-5679
Phone: (603) 431-1121
Fax: (603) 431-9147
Approximate (ZIP-level) locationGet directions
Mailing address
1900 Lafayette Rd
Portsmouth, NH 03801-5679
Registry dates
- Enumerated
- 2008-06-11
- Last updated
- 2017-02-23
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.