Catherine Dionisio, PH.D.
NPI 1730365248 · Clinical Psychologist · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Dionisio, PH.D. is a Clinical Psychologist provider in Walnut Creek, CA (NPI 1730365248).
Provider details
- NPI number
- 1730365248
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 530 Church StSuite 2463,Ann Arbor, MI 48109-1043Phone: (734) 764-3471
Registry dates
- Enumerated
- 2008-01-15
- Last updated
- 2022-01-11
Frequently asked questions
- What is Catherine Dionisio's NPI number?
- Catherine Dionisio's National Provider Identifier (NPI) is 1730365248, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Dionisio's specialty?
- Catherine Dionisio is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Catherine Dionisio located?
- Catherine Dionisio's practice location on file with NPPES is 710 S Broadway Ste 300, Walnut Creek, CA 94596-5229.
- What is Catherine Dionisio's phone number?
- The practice phone number listed in the NPPES registry for Catherine Dionisio is (925) 295-4145.
- Does Catherine Dionisio accept Medicare?
- Catherine Dionisio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Dionisio's NPI active?
- Yes — Catherine Dionisio's NPI (1730365248) is active in the NPPES registry as of the last update on 2022-01-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.