Sandra Marroquin, LCSW
NPI 1942618020 · Clinical Social Worker · Gardena, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sandra Marroquin, LCSW is a Clinical Social Worker provider in Gardena, CA (NPI 1942618020).
Provider details
- NPI number
- 1942618020
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Rehabilitation Practitioner225400000X
Respiratory, Developmental, Rehabilitative and Restorative 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
11 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
- 2014-08-01
- Last updated
- 2022-03-01
- Certified
- 2022-03-01
Frequently asked questions
- What is Sandra Marroquin's NPI number?
- Sandra Marroquin's National Provider Identifier (NPI) is 1942618020, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sandra Marroquin's specialty?
- Sandra Marroquin is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Sandra Marroquin located?
- Sandra Marroquin's practice location on file with NPPES is 108 W Victoria St, Gardena, CA 90248-3523.
- What is Sandra Marroquin's phone number?
- The practice phone number listed in the NPPES registry for Sandra Marroquin is (310) 715-2020.
- Does Sandra Marroquin accept Medicare?
- Sandra Marroquin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sandra Marroquin's NPI active?
- Yes — Sandra Marroquin's NPI (1942618020) is active in the NPPES registry as of the last update on 2022-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.