Mariana Casillas
NPI 1871148312 · Addiction (Substance Use Disorder) Counselor · King City, CA
Mariana Casillas is a Addiction (Substance Use Disorder) Counselor provider in King City, CA (NPI 1871148312).
Provider details
- NPI number
- 1871148312
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- NA (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
6 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
- 2019-08-01
- Last updated
- 2019-08-01
Frequently asked questions
- What is Mariana Casillas's NPI number?
- Mariana Casillas's National Provider Identifier (NPI) is 1871148312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Casillas's specialty?
- Mariana Casillas is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Mariana Casillas located?
- Mariana Casillas's practice location on file with NPPES is 641 Broadway St, King City, CA 93930-3231.
- What is Mariana Casillas's phone number?
- The practice phone number listed in the NPPES registry for Mariana Casillas is (831) 525-8108.
- Is Mariana Casillas's NPI active?
- Yes — Mariana Casillas's NPI (1871148312) is active in the NPPES registry as of the last update on 2019-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.