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Hiroko Johnstone, D.C.
NPI 1235295437 · Neurology Chiropractor · San Jose, CA
Hiroko Johnstone, D.C. is a Neurology Chiropractor provider in San Jose, CA (NPI 1235295437).
Provider details
- NPI number
- 1235295437
- Entity type
- Individual
- Primary specialty
- Neurology ChiropractorChiropractic Providers
- Credential
- D.C.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 24250 (CA)
Specialties & taxonomies
Chiropractic Providers
Profile Score
Detailed profile(90/100 index)
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
4950 Hamilton Ave
Suite 108
San Jose, CA 95130-1750
Phone: (408) 871-1111
Fax: (408) 871-0881
Street-level locationGet directions
Mailing address
4950 Hamilton Ave
San Jose, CA 95130-1750
Registry dates
- Enumerated
- 2006-12-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Hiroko Johnstone's NPI number?
- Hiroko Johnstone's National Provider Identifier (NPI) is 1235295437, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hiroko Johnstone's specialty?
- Hiroko Johnstone is listed in the NPPES registry with a primary specialty of Neurology Chiropractor (Chiropractic Providers).
- Where is Hiroko Johnstone located?
- Hiroko Johnstone's practice location on file with NPPES is 4950 Hamilton Ave, San Jose, CA 95130-1750.
- What is Hiroko Johnstone's phone number?
- The practice phone number listed in the NPPES registry for Hiroko Johnstone is (408) 871-1111.
- Is Hiroko Johnstone's NPI active?
- Yes — Hiroko Johnstone's NPI (1235295437) 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.