IndividualActive
Claire Oxtoby, PHD
NPI 1154679868 · Psychologist · Rancho Cucamonga, CA
Claire Oxtoby, PHD is a Psychologist provider in Rancho Cucamonga, CA (NPI 1154679868).
Provider details
- NPI number
- 1154679868
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
8300 Utica Ave Ste 245
Rancho Cucamonga, CA 91730-3852
Phone: (910) 297-1740
Street-level locationGet directions
Mailing address
741 Brookside Ln
Sierra Madre, CA 91024-1425
Registry dates
- Enumerated
- 2012-08-28
- Last updated
- 2020-09-16
- Certified
- 2020-09-16
Frequently asked questions
- What is Claire Oxtoby's NPI number?
- Claire Oxtoby's National Provider Identifier (NPI) is 1154679868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Oxtoby's specialty?
- Claire Oxtoby is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Claire Oxtoby located?
- Claire Oxtoby's practice location on file with NPPES is 8300 Utica Ave Ste 245, Rancho Cucamonga, CA 91730-3852.
- What is Claire Oxtoby's phone number?
- The practice phone number listed in the NPPES registry for Claire Oxtoby is (910) 297-1740.
- Is Claire Oxtoby's NPI active?
- Yes — Claire Oxtoby's NPI (1154679868) is active in the NPPES registry as of the last update on 2020-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.