William Closs, LAT, ATC, CSCS
NPI 1386484582 · Athletic Trainer · Nashua, NH
William Closs, LAT, ATC, CSCS is a Athletic Trainer provider in Nashua, NH (NPI 1386484582).
Provider details
- NPI number
- 1386484582
- Entity type
- Individual
- Primary specialty
- Athletic TrainerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- LAT, ATC, CSCS
- Sex
- Male
- Sole proprietor
- No
- License
- ATL3290 (MA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
2 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
- 2024-05-28
- Last updated
- 2024-05-28
- Certified
- 2024-05-28
Frequently asked questions
- What is William Closs's NPI number?
- William Closs's National Provider Identifier (NPI) is 1386484582, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Closs's specialty?
- William Closs is listed in the NPPES registry with a primary specialty of Athletic Trainer (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is William Closs located?
- William Closs's practice location on file with NPPES is 436 Amherst St Ste 102, Nashua, NH 03063-1276.
- What is William Closs's phone number?
- The practice phone number listed in the NPPES registry for William Closs is (603) 417-5087.
- Is William Closs's NPI active?
- Yes — William Closs's NPI (1386484582) is active in the NPPES registry as of the last update on 2024-05-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.