IndividualActive
John Castello
NPI 1891405049 · Behavior Technician · Tracy, CA
John Castello is a Behavior Technician provider in Tracy, CA (NPI 1891405049).
Provider details
- NPI number
- 1891405049
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(53/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
510 Whispering Wind Dr Ste 110
Tracy, CA 95377-8119
Phone: (209) 832-7756
Street-level locationGet directions
Mailing address
Po Box 5157
Modesto, CA 95352-5157
Registry dates
- Enumerated
- 2022-11-29
- Last updated
- 2022-11-29
- Certified
- 2022-11-29
Frequently asked questions
- What is John Castello's NPI number?
- John Castello's National Provider Identifier (NPI) is 1891405049, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Castello's specialty?
- John Castello is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is John Castello located?
- John Castello's practice location on file with NPPES is 510 Whispering Wind Dr Ste 110, Tracy, CA 95377-8119.
- What is John Castello's phone number?
- The practice phone number listed in the NPPES registry for John Castello is (209) 832-7756.
- Is John Castello's NPI active?
- Yes — John Castello's NPI (1891405049) is active in the NPPES registry as of the last update on 2022-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.