Mark Johnston, DO
NPI 1326989971 · Student in an Organized Health Care Education/Training Program · Roanoke, VA
Mark Johnston, DO is a Student in an Organized Health Care Education/Training Program provider in Roanoke, VA (NPI 1326989971).
Provider details
- NPI number
- 1326989971
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- DO
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
- 2026-04-06
- Last updated
- 2026-04-06
- Certified
- 2026-04-05
Frequently asked questions
- What is Mark Johnston's NPI number?
- Mark Johnston's National Provider Identifier (NPI) is 1326989971, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Johnston's specialty?
- Mark Johnston is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Mark Johnston located?
- Mark Johnston's practice location on file with NPPES is 1906 Belleview Ave Se, Roanoke, VA 24014-1838.
- What is Mark Johnston's phone number?
- The practice phone number listed in the NPPES registry for Mark Johnston is (540) 981-7000.
- Is Mark Johnston's NPI active?
- Yes — Mark Johnston's NPI (1326989971) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.