Rhona Johnston, PH.D.
NPI 1225244791 · Clinical Psychologist · Chevy Chase, MD
Rhona Johnston, PH.D. is a Clinical Psychologist provider in Chevy Chase, MD (NPI 1225244791).
Provider details
- NPI number
- 1225244791
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1737 (MD)
Specialties & taxonomies
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
19 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
- 2007-05-14
- Last updated
- 2007-07-08
Frequently asked questions
- What is Rhona Johnston's NPI number?
- Rhona Johnston's National Provider Identifier (NPI) is 1225244791, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rhona Johnston's specialty?
- Rhona Johnston is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Rhona Johnston located?
- Rhona Johnston's practice location on file with NPPES is 7312 Lynnhurst St, Chevy Chase, MD 20815-3104.
- What is Rhona Johnston's phone number?
- The practice phone number listed in the NPPES registry for Rhona Johnston is (301) 652-2169.
- Is Rhona Johnston's NPI active?
- Yes — Rhona Johnston's NPI (1225244791) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.