IndividualActive
Judy Johnston
NPI 1841658648 · Physician Assistant · San Jose, CA
Judy Johnston is a Physician Assistant provider in San Jose, CA (NPI 1841658648).
Provider details
- NPI number
- 1841658648
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
225 N Jackson Ave
San Jose, CA 95116-1603
Phone: (408) 259-5000
Street-level locationGet directions
Mailing address
Po Box 3004
Saratoga, CA 95070-1004
Registry dates
- Enumerated
- 2016-02-08
- Last updated
- 2019-10-21
Frequently asked questions
- What is Judy Johnston's NPI number?
- Judy Johnston's National Provider Identifier (NPI) is 1841658648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Judy Johnston's specialty?
- Judy Johnston is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Judy Johnston located?
- Judy Johnston's practice location on file with NPPES is 225 N Jackson Ave, San Jose, CA 95116-1603.
- What is Judy Johnston's phone number?
- The practice phone number listed in the NPPES registry for Judy Johnston is (408) 259-5000.
- Is Judy Johnston's NPI active?
- Yes — Judy Johnston's NPI (1841658648) is active in the NPPES registry as of the last update on 2019-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.