Mark Villarreal, LCSW
NPI 1053625475 · Clinical Social Worker · Elk Grove, CA
Mark Villarreal, LCSW is a Clinical Social Worker provider in Elk Grove, CA (NPI 1053625475).
Provider details
- NPI number
- 1053625475
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- Yes
- License
- 26031 (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
- 2010-07-27
- Last updated
- 2010-07-27
Frequently asked questions
- What is Mark Villarreal's NPI number?
- Mark Villarreal's National Provider Identifier (NPI) is 1053625475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Villarreal's specialty?
- Mark Villarreal is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mark Villarreal located?
- Mark Villarreal's practice location on file with NPPES is 8841 Williamson Dr Ste 20, Elk Grove, CA 95624-1800.
- What is Mark Villarreal's phone number?
- The practice phone number listed in the NPPES registry for Mark Villarreal is (408) 655-8358.
- Is Mark Villarreal's NPI active?
- Yes — Mark Villarreal's NPI (1053625475) is active in the NPPES registry as of the last update on 2010-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.