Grissel Marquez, MSW
NPI 1598997983 · Clinical Social Worker · Oxnard, CA
Grissel Marquez, MSW is a Clinical Social Worker provider in Oxnard, CA (NPI 1598997983).
Provider details
- NPI number
- 1598997983
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Social Worker104100000X
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
16 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
- 2009-08-18
- Last updated
- 2024-02-12
- Certified
- 2024-02-12
Frequently asked questions
- What is Grissel Marquez's NPI number?
- Grissel Marquez's National Provider Identifier (NPI) is 1598997983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grissel Marquez's specialty?
- Grissel Marquez is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Grissel Marquez located?
- Grissel Marquez's practice location on file with NPPES is 2500 S C St, Oxnard, CA 93033-4560.
- What is Grissel Marquez's phone number?
- The practice phone number listed in the NPPES registry for Grissel Marquez is (805) 385-9460.
- Is Grissel Marquez's NPI active?
- Yes — Grissel Marquez's NPI (1598997983) is active in the NPPES registry as of the last update on 2024-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.