IndividualActive
Michael Johnson
NPI 1902440266 · Attendant Care Provider · Mercer Island, WA
Michael Johnson is a Attendant Care Provider provider in Mercer Island, WA (NPI 1902440266).
Provider details
- NPI number
- 1902440266
- Entity type
- Individual
- Primary specialty
- Attendant Care ProviderNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 10052933 (WA)
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
3812 W. Mercer Way
Mercer Island, WA 98040
Phone: (206) 232-8158
Street-level locationGet directions
Mailing address
P.o. Box 994
Mercer Island, WA 98040
Registry dates
- Enumerated
- 2019-10-30
- Last updated
- 2019-10-30
Frequently asked questions
- What is Michael Johnson's NPI number?
- Michael Johnson's National Provider Identifier (NPI) is 1902440266, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Johnson's specialty?
- Michael Johnson is listed in the NPPES registry with a primary specialty of Attendant Care Provider (Nursing Service Related Providers).
- Where is Michael Johnson located?
- Michael Johnson's practice location on file with NPPES is 3812 W. Mercer Way, Mercer Island, WA 98040.
- What is Michael Johnson's phone number?
- The practice phone number listed in the NPPES registry for Michael Johnson is (206) 232-8158.
- Is Michael Johnson's NPI active?
- Yes — Michael Johnson's NPI (1902440266) is active in the NPPES registry as of the last update on 2019-10-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.