IndividualActive
Stephanie Johnson, PSY.D.
NPI 1588944813 · Clinical Psychologist · Ione, CA
Stephanie Johnson, PSY.D. is a Clinical Psychologist provider in Ione, CA (NPI 1588944813).
Provider details
- NPI number
- 1588944813
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY29508 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
4001 State Highway 104
Ione, CA 95640
Phone: (209) 274-4911
Approximate (ZIP-level) locationGet directions
Mailing address
4001 State Highway 104
Ione, CA 95640
Registry dates
- Enumerated
- 2011-08-17
- Last updated
- 2022-07-22
- Certified
- 2022-07-13
Frequently asked questions
- What is Stephanie Johnson's NPI number?
- Stephanie Johnson's National Provider Identifier (NPI) is 1588944813, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Johnson's specialty?
- Stephanie Johnson is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Stephanie Johnson located?
- Stephanie Johnson's practice location on file with NPPES is 4001 State Highway 104, Ione, CA 95640.
- What is Stephanie Johnson's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Johnson is (209) 274-4911.
- Is Stephanie Johnson's NPI active?
- Yes — Stephanie Johnson's NPI (1588944813) is active in the NPPES registry as of the last update on 2022-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.