John Marshall, PTA
NPI 1699057125 · Physical Therapy Assistant · Dover, NH
John Marshall, PTA is a Physical Therapy Assistant provider in Dover, NH (NPI 1699057125).
Provider details
- NPI number
- 1699057125
- Entity type
- Individual
- Primary specialty
- Physical Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PTA
- Sex
- Male
- Sole proprietor
- Yes
- License
- 8518 (MA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-09-11
- Last updated
- 2015-11-17
Frequently asked questions
- What is John Marshall's NPI number?
- John Marshall's National Provider Identifier (NPI) is 1699057125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Marshall's specialty?
- John Marshall is listed in the NPPES registry with a primary specialty of Physical Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is John Marshall located?
- John Marshall's practice location on file with NPPES is 18 Charles St Apt B, Dover, NH 03820-4594.
- What is John Marshall's phone number?
- The practice phone number listed in the NPPES registry for John Marshall is (603) 749-4616.
- Is John Marshall's NPI active?
- Yes — John Marshall's NPI (1699057125) is active in the NPPES registry as of the last update on 2015-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.