Diana Johnstone, PHARMD
NPI 1366074288 · Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Christiansburg, VA
Diana Johnstone, PHARMD is a Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist provider in Christiansburg, VA (NPI 1366074288).
Provider details
- NPI number
- 1366074288
- Entity type
- Individual
- Primary specialty
- Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistPharmacy Service Providers
- Credential
- PHARMD
- Sex
- Female
- Sole proprietor
- No
- License
- 0202214729 (VA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2020-02-08
- Last updated
- 2020-02-08
- Certified
- 2020-02-08
Frequently asked questions
- What is Diana Johnstone's NPI number?
- Diana Johnstone's National Provider Identifier (NPI) is 1366074288, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Johnstone's specialty?
- Diana Johnstone is listed in the NPPES registry with a primary specialty of Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist (Pharmacy Service Providers).
- Where is Diana Johnstone located?
- Diana Johnstone's practice location on file with NPPES is 555 N Franklin St, Christiansburg, VA 24073-1949.
- What is Diana Johnstone's phone number?
- The practice phone number listed in the NPPES registry for Diana Johnstone is (540) 381-8716.
- Is Diana Johnstone's NPI active?
- Yes — Diana Johnstone's NPI (1366074288) is active in the NPPES registry as of the last update on 2020-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.