IndividualActive
Isom Day
NPI 1821891201 · Behavior Technician · Hacienda Heights, CA
Isom Day is a Behavior Technician provider in Hacienda Heights, CA (NPI 1821891201).
Provider details
- NPI number
- 1821891201
- 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
1 yr in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
15852 Gale Ave
Hacienda Heights, CA 91745-1601
Phone: (855) 223-7123
Street-level locationGet directions
Mailing address
Po Box 33568
San Diego, CA 92163-3568
Additional practice locations (1)
- 17462 Colima RdRowland Heights, CA 91748-1633Phone: (855) 223-7123
Registry dates
- Enumerated
- 2025-03-31
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Isom Day's NPI number?
- Isom Day's National Provider Identifier (NPI) is 1821891201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Isom Day's specialty?
- Isom Day is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Isom Day located?
- Isom Day's practice location on file with NPPES is 15852 Gale Ave, Hacienda Heights, CA 91745-1601.
- What is Isom Day's phone number?
- The practice phone number listed in the NPPES registry for Isom Day is (855) 223-7123.
- Is Isom Day's NPI active?
- Yes — Isom Day's NPI (1821891201) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.