Efren Castillo Arce
NPI 1538637715 · Mental Health Counselor · Fountain Valley, CA
Efren Castillo Arce is a Mental Health Counselor provider in Fountain Valley, CA (NPI 1538637715).
Provider details
- NPI number
- 1538637715
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
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
7 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
- 2018-11-06
- Last updated
- 2020-07-15
- Certified
- 2020-07-15
Frequently asked questions
- What is Efren Castillo Arce's NPI number?
- Efren Castillo Arce's National Provider Identifier (NPI) is 1538637715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efren Castillo Arce's specialty?
- Efren Castillo Arce is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Efren Castillo Arce located?
- Efren Castillo Arce's practice location on file with NPPES is 16580 Harbor Blvd Ste M, Fountain Valley, CA 92708-1385.
- What is Efren Castillo Arce's phone number?
- The practice phone number listed in the NPPES registry for Efren Castillo Arce is (714) 559-2256.
- Is Efren Castillo Arce's NPI active?
- Yes — Efren Castillo Arce's NPI (1538637715) is active in the NPPES registry as of the last update on 2020-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.