Julia Castillo
NPI 1225210313 · Addiction (Substance Use Disorder) Counselor · Oakland, CA
Julia Castillo is a Addiction (Substance Use Disorder) Counselor provider in Oakland, CA (NPI 1225210313).
Provider details
- NPI number
- 1225210313
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
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
18 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
- 2007-11-29
- Last updated
- 2007-11-29
Frequently asked questions
- What is Julia Castillo's NPI number?
- Julia Castillo's National Provider Identifier (NPI) is 1225210313, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Castillo's specialty?
- Julia Castillo is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Julia Castillo located?
- Julia Castillo's practice location on file with NPPES is 1411 E 31st St, Oakland, CA 94602-1018.
- What is Julia Castillo's phone number?
- The practice phone number listed in the NPPES registry for Julia Castillo is (510) 437-8588.
- Is Julia Castillo's NPI active?
- Yes — Julia Castillo's NPI (1225210313) is active in the NPPES registry as of the last update on 2007-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.