IndividualActive
Mary O'Brien
NPI 1578262606 · Behavior Technician · Montclair, CA
Mary O'Brien is a Behavior Technician provider in Montclair, CA (NPI 1578262606).
Provider details
- NPI number
- 1578262606
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(52/100 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
4950 San Bernardino St Ste 101
Montclair, CA 91763-2328
Phone: (800) 249-1266
Street-level locationGet directions
Mailing address
1301 E Orangewood Ave
Anaheim, CA 92805-6807
Registry dates
- Enumerated
- 2023-02-27
- Last updated
- 2023-02-27
- Certified
- 2023-02-27
Frequently asked questions
- What is Mary O'Brien's NPI number?
- Mary O'Brien's National Provider Identifier (NPI) is 1578262606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary O'Brien's specialty?
- Mary O'Brien is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Mary O'Brien located?
- Mary O'Brien's practice location on file with NPPES is 4950 San Bernardino St Ste 101, Montclair, CA 91763-2328.
- What is Mary O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mary O'Brien is (800) 249-1266.
- Is Mary O'Brien's NPI active?
- Yes — Mary O'Brien's NPI (1578262606) is active in the NPPES registry as of the last update on 2023-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.