Alexandra Diddams, PH.D
NPI 1295325652 · Clinical Psychologist · San Carlos, CA
Alexandra Diddams, PH.D is a Clinical Psychologist provider in San Carlos, CA (NPI 1295325652).
Provider details
- NPI number
- 1295325652
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY31951 (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
5 yrs in NPPES registry
- Profile completeness38% of score
100% 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)
- 851 Fremont Ave Ste 99Los Altos, CA 94024-5602Phone: (650) 439-0620
Registry dates
- Enumerated
- 2021-01-20
- Last updated
- 2021-01-20
- Certified
- 2021-01-20
Frequently asked questions
- What is Alexandra Diddams's NPI number?
- Alexandra Diddams's National Provider Identifier (NPI) is 1295325652, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexandra Diddams's specialty?
- Alexandra Diddams is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Alexandra Diddams located?
- Alexandra Diddams's practice location on file with NPPES is 1303 San Carlos Ave, San Carlos, CA 94070-2317.
- What is Alexandra Diddams's phone number?
- The practice phone number listed in the NPPES registry for Alexandra Diddams is (650) 439-0620.
- Is Alexandra Diddams's NPI active?
- Yes — Alexandra Diddams's NPI (1295325652) is active in the NPPES registry as of the last update on 2021-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.