Christopher Johnston
NPI 1710211164 · Day Training/Habilitation Specialist · Guerneville, CA
Christopher Johnston is a Day Training/Habilitation Specialist provider in Guerneville, CA (NPI 1710211164).
Provider details
- NPI number
- 1710211164
- Entity type
- Individual
- Primary specialty
- Day Training/Habilitation SpecialistNursing Service Related Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Nursing Service Related Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2009-10-01
- Last updated
- 2025-07-22
- Certified
- 2025-07-22
Frequently asked questions
- What is Christopher Johnston's NPI number?
- Christopher Johnston's National Provider Identifier (NPI) is 1710211164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Johnston's specialty?
- Christopher Johnston is listed in the NPPES registry with a primary specialty of Day Training/Habilitation Specialist (Nursing Service Related Providers).
- Where is Christopher Johnston located?
- Christopher Johnston's practice location on file with NPPES is 16390 Main St, Guerneville, CA 95446-9677.
- What is Christopher Johnston's phone number?
- The practice phone number listed in the NPPES registry for Christopher Johnston is (707) 565-1209.
- Is Christopher Johnston's NPI active?
- Yes — Christopher Johnston's NPI (1710211164) is active in the NPPES registry as of the last update on 2025-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.