Marc Johnston, PHARMD,
NPI 1912993734 · Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Clackamas, OR
Marc Johnston, PHARMD, is a Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist provider in Clackamas, OR (NPI 1912993734).
Provider details
- NPI number
- 1912993734
- Entity type
- Individual
- Primary specialty
- Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistPharmacy Service Providers
- Credential
- PHARMD,
- Sex
- Male
- Sole proprietor
- No
- License
- RPH0012717 (OR)
Specialties & taxonomies
Pharmacy Service Providers
Pharmacy 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
- 2005-09-27
- Last updated
- 2015-12-31
Frequently asked questions
- What is Marc Johnston's NPI number?
- Marc Johnston's National Provider Identifier (NPI) is 1912993734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Johnston's specialty?
- Marc Johnston is listed in the NPPES registry with a primary specialty of Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist (Pharmacy Service Providers).
- Where is Marc Johnston located?
- Marc Johnston's practice location on file with NPPES is 15335 Se Hidden Falls Drive, Clackamas, OR 97015.
- What is Marc Johnston's phone number?
- The practice phone number listed in the NPPES registry for Marc Johnston is (775) 846-8860.
- Is Marc Johnston's NPI active?
- Yes — Marc Johnston's NPI (1912993734) is active in the NPPES registry as of the last update on 2015-12-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.