John Mastie, RRT
NPI 1538908546 · General Care Registered Respiratory Therapist · Iron Mountain, MI
John Mastie, RRT is a General Care Registered Respiratory Therapist provider in Iron Mountain, MI (NPI 1538908546).
Provider details
- NPI number
- 1538908546
- Entity type
- Individual
- Primary specialty
- General Care Registered Respiratory TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- RRT
- Sex
- Male
- Sole proprietor
- No
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
2 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2024-05-20
- Last updated
- 2024-05-20
- Certified
- 2024-02-26
Frequently asked questions
- What is John Mastie's NPI number?
- John Mastie's National Provider Identifier (NPI) is 1538908546, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Mastie's specialty?
- John Mastie is listed in the NPPES registry with a primary specialty of General Care Registered Respiratory Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is John Mastie located?
- John Mastie's practice location on file with NPPES is 325 E H St, Iron Mountain, MI 49801-4760.
- What is John Mastie's phone number?
- The practice phone number listed in the NPPES registry for John Mastie is (906) 774-3300.
- Is John Mastie's NPI active?
- Yes — John Mastie's NPI (1538908546) is active in the NPPES registry as of the last update on 2024-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.