Sandra Marquez, LCSW
NPI 1689969289 · Clinical Social Worker · Santa Clara, CA
Sandra Marquez, LCSW is a Clinical Social Worker provider in Santa Clara, CA (NPI 1689969289).
Provider details
- NPI number
- 1689969289
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 68434 (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
15 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
- 2011-06-13
- Last updated
- 2025-09-19
- Certified
- 2025-09-19
Frequently asked questions
- What is Sandra Marquez's NPI number?
- Sandra Marquez's National Provider Identifier (NPI) is 1689969289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Marquez's specialty?
- Sandra Marquez is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sandra Marquez located?
- Sandra Marquez's practice location on file with NPPES is 5201 Great America Pkwy, Santa Clara, CA 95054-1122.
- What is Sandra Marquez's phone number?
- The practice phone number listed in the NPPES registry for Sandra Marquez is (323) 205-7088.
- Is Sandra Marquez's NPI active?
- Yes — Sandra Marquez's NPI (1689969289) is active in the NPPES registry as of the last update on 2025-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.