Joanna Friedman, PH.D.
NPI 1861544215 · Clinical Psychologist · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Friedman, PH.D. is a Clinical Psychologist provider in Walnut Creek, CA (NPI 1861544215).
Provider details
- NPI number
- 1861544215
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY20564 (CA)
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
- 2007-01-17
- Last updated
- 2022-01-03
Frequently asked questions
- What is Joanna Friedman's NPI number?
- Joanna Friedman's National Provider Identifier (NPI) is 1861544215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Friedman's specialty?
- Joanna Friedman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Joanna Friedman located?
- Joanna Friedman's practice location on file with NPPES is 710 S Broadway, Walnut Creek, CA 94596-5294.
- What is Joanna Friedman's phone number?
- The practice phone number listed in the NPPES registry for Joanna Friedman is (925) 295-4932.
- Does Joanna Friedman accept Medicare?
- Joanna Friedman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Friedman's NPI active?
- Yes — Joanna Friedman's NPI (1861544215) is active in the NPPES registry as of the last update on 2022-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.