IndividualActive
Nathaniel Grandinetti
NPI 1437089539 · Behavior Technician · Monrovia, CA
Nathaniel Grandinetti is a Behavior Technician provider in Monrovia, CA (NPI 1437089539).
Provider details
- NPI number
- 1437089539
- 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
Basic profile(46/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
1333 S Mayflower Ave
Suite 220
Monrovia, CA 91016-4066
Phone: (818) 241-6780
Fax: (888) 588-2752
Street-level locationGet directions
Mailing address
1333 S Mayflower Ave
Monrovia, CA 91016-4066
Registry dates
- Enumerated
- 2026-05-20
- Last updated
- 2026-05-20
- Certified
- 2026-05-20
Frequently asked questions
- What is Nathaniel Grandinetti's NPI number?
- Nathaniel Grandinetti's National Provider Identifier (NPI) is 1437089539, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathaniel Grandinetti's specialty?
- Nathaniel Grandinetti is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Nathaniel Grandinetti located?
- Nathaniel Grandinetti's practice location on file with NPPES is 1333 S Mayflower Ave, Monrovia, CA 91016-4066.
- What is Nathaniel Grandinetti's phone number?
- The practice phone number listed in the NPPES registry for Nathaniel Grandinetti is (818) 241-6780.
- Is Nathaniel Grandinetti's NPI active?
- Yes — Nathaniel Grandinetti's NPI (1437089539) is active in the NPPES registry as of the last update on 2026-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.