Alan Johnstone, FNP
NPI 1003307927 · Family Nurse Practitioner · San Francisco, CA
Alan Johnstone, FNP is a Family Nurse Practitioner provider in San Francisco, CA (NPI 1003307927).
Provider details
- NPI number
- 1003307927
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- No
- License
- 95009541 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-05-26
- Last updated
- 2021-03-12
- Certified
- 2021-03-12
Frequently asked questions
- What is Alan Johnstone's NPI number?
- Alan Johnstone's National Provider Identifier (NPI) is 1003307927, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Johnstone's specialty?
- Alan Johnstone is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alan Johnstone located?
- Alan Johnstone's practice location on file with NPPES is 1 Embarcadero Ctr Ste 1900, San Francisco, CA 94111-3723.
- What is Alan Johnstone's phone number?
- The practice phone number listed in the NPPES registry for Alan Johnstone is (415) 658-6791.
- Is Alan Johnstone's NPI active?
- Yes — Alan Johnstone's NPI (1003307927) is active in the NPPES registry as of the last update on 2021-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.