Catherine Johnston, PH.D.
NPI 1851370886 · Psychologist · Boulder, CO
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Johnston, PH.D. is a Psychologist provider in Boulder, CO (NPI 1851370886).
Provider details
- NPI number
- 1851370886
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 990 (CO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social 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
- 2006-01-10
- Last updated
- 2013-03-30
Frequently asked questions
- What is Catherine Johnston's NPI number?
- Catherine Johnston's National Provider Identifier (NPI) is 1851370886, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Johnston's specialty?
- Catherine Johnston is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Catherine Johnston located?
- Catherine Johnston's practice location on file with NPPES is 4141 Arapahoe Ave, Boulder, CO 80303-1032.
- What is Catherine Johnston's phone number?
- The practice phone number listed in the NPPES registry for Catherine Johnston is (303) 447-8521.
- Does Catherine Johnston accept Medicare?
- Catherine Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Johnston's NPI active?
- Yes — Catherine Johnston's NPI (1851370886) is active in the NPPES registry as of the last update on 2013-03-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.