Diamond William
NPI 1669045589 · Occupational Therapy Assistant · Brea, CA
Diamond William is a Occupational Therapy Assistant provider in Brea, CA (NPI 1669045589).
Provider details
- NPI number
- 1669045589
- Entity type
- Individual
- Primary specialty
- Occupational Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 5602 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% 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
Mailing address
Registry dates
- Enumerated
- 2021-07-19
- Last updated
- 2021-07-19
- Certified
- 2021-07-19
Frequently asked questions
- What is Diamond William's NPI number?
- Diamond William's National Provider Identifier (NPI) is 1669045589, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diamond William's specialty?
- Diamond William is listed in the NPPES registry with a primary specialty of Occupational Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Diamond William located?
- Diamond William's practice location on file with NPPES is 875 N Brea Blvd, Brea, CA 92821-2606.
- What is Diamond William's phone number?
- The practice phone number listed in the NPPES registry for Diamond William is (714) 529-6842.
- Is Diamond William's NPI active?
- Yes — Diamond William's NPI (1669045589) is active in the NPPES registry as of the last update on 2021-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.