Katherine Walker, PH.D.
NPI 1811055239 · Psychologist · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Walker, PH.D. is a Psychologist provider in Walnut Creek, CA (NPI 1811055239).
Provider details
- NPI number
- 1811055239
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
- License
- PSY15553 (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
- 2006-12-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Katherine Walker's NPI number?
- Katherine Walker's National Provider Identifier (NPI) is 1811055239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Walker's specialty?
- Katherine Walker is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Katherine Walker located?
- Katherine Walker's practice location on file with NPPES is 710 S Broadway, Walnut Creek, CA 94596-5294.
- What is Katherine Walker's phone number?
- The practice phone number listed in the NPPES registry for Katherine Walker is (925) 295-5466.
- Does Katherine Walker accept Medicare?
- Katherine Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Walker's NPI active?
- Yes — Katherine Walker's NPI (1811055239) 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.