James Johnston, MD
NPI 1801860267 · Specialist · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Johnston, MD is a Specialist provider in Pittsburgh, PA (NPI 1801860267).
Provider details
- NPI number
- 1801860267
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD024198E (PA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-02-14
- Last updated
- 2011-09-13
Frequently asked questions
- What is James Johnston's NPI number?
- James Johnston's National Provider Identifier (NPI) is 1801860267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Johnston's specialty?
- James Johnston is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is James Johnston located?
- James Johnston's practice location on file with NPPES is 3459 5th Ave, Pittsburgh, PA 15213-3236.
- What is James Johnston's phone number?
- The practice phone number listed in the NPPES registry for James Johnston is (412) 647-2561.
- Does James Johnston accept Medicare?
- James Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Johnston's NPI active?
- Yes — James Johnston's NPI (1801860267) is active in the NPPES registry as of the last update on 2011-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.