Gretchen Mallios, LCSW
NPI 1821145442 · Clinical Social Worker · San Diego, CA
Gretchen Mallios, LCSW is a Clinical Social Worker provider in San Diego, CA (NPI 1821145442).
Provider details
- NPI number
- 1821145442
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 16057 (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
19 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
- 2007-01-04
- Last updated
- 2012-03-27
Frequently asked questions
- What is Gretchen Mallios's NPI number?
- Gretchen Mallios's National Provider Identifier (NPI) is 1821145442, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Mallios's specialty?
- Gretchen Mallios is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Gretchen Mallios located?
- Gretchen Mallios's practice location on file with NPPES is 3551 Front Street, San Diego, CA 92103-4815.
- What is Gretchen Mallios's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Mallios is (619) 781-2156.
- Is Gretchen Mallios's NPI active?
- Yes — Gretchen Mallios's NPI (1821145442) is active in the NPPES registry as of the last update on 2012-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.