Alessandra Diaz
NPI 1558862300 · Professional Counselor · Fremont, CA
Alessandra Diaz is a Professional Counselor provider in Fremont, CA (NPI 1558862300).
Provider details
- NPI number
- 1558862300
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Professional Counselor101YP2500X
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2018-02-27
- Last updated
- 2018-02-27
Frequently asked questions
- What is Alessandra Diaz's NPI number?
- Alessandra Diaz's National Provider Identifier (NPI) is 1558862300, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alessandra Diaz's specialty?
- Alessandra Diaz is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Alessandra Diaz located?
- Alessandra Diaz's practice location on file with NPPES is 34822 Candice Ct, Fremont, CA 94555-2400.
- What is Alessandra Diaz's phone number?
- The practice phone number listed in the NPPES registry for Alessandra Diaz is (510) 909-4782.
- Is Alessandra Diaz's NPI active?
- Yes — Alessandra Diaz's NPI (1558862300) is active in the NPPES registry as of the last update on 2018-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.