Mary Johnson, R.N.
NPI 1477642189 · Community Health Registered Nurse · Sault Sainte Marie, MI
Mary Johnson, R.N. is a Community Health Registered Nurse provider in Sault Sainte Marie, MI (NPI 1477642189).
Provider details
- NPI number
- 1477642189
- Entity type
- Individual
- Primary specialty
- Community Health Registered NurseNursing Service Providers
- Credential
- R.N.
- Sex
- Female
- Sole proprietor
- No
- License
- 4704238873 (MI)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-10-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Johnson's NPI number?
- Mary Johnson's National Provider Identifier (NPI) is 1477642189, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Johnson's specialty?
- Mary Johnson is listed in the NPPES registry with a primary specialty of Community Health Registered Nurse (Nursing Service Providers).
- Where is Mary Johnson located?
- Mary Johnson's practice location on file with NPPES is 3865 S Mackinac Trl, Sault Sainte Marie, MI 49783-9286.
- What is Mary Johnson's phone number?
- The practice phone number listed in the NPPES registry for Mary Johnson is (906) 632-2805.
- Is Mary Johnson's NPI active?
- Yes — Mary Johnson's NPI (1477642189) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.