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Onastacia Fields
NPI 1700607504 · Behavior Analyst · Concord, CA
Onastacia Fields is a Behavior Analyst provider in Concord, CA (NPI 1700607504).
Provider details
- NPI number
- 1700607504
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Basic profile(49/100 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
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
1200 Concord Ave Ste 185
Concord, CA 94520-5006
Phone: (510) 268-8120
Street-level locationGet directions
Mailing address
1200 Concord Ave Ste 185
Concord, CA 94520-5006
Registry dates
- Enumerated
- 2024-10-23
- Last updated
- 2024-10-23
- Certified
- 2024-10-23
Frequently asked questions
- What is Onastacia Fields's NPI number?
- Onastacia Fields's National Provider Identifier (NPI) is 1700607504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Onastacia Fields's specialty?
- Onastacia Fields is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Onastacia Fields located?
- Onastacia Fields's practice location on file with NPPES is 1200 Concord Ave Ste 185, Concord, CA 94520-5006.
- What is Onastacia Fields's phone number?
- The practice phone number listed in the NPPES registry for Onastacia Fields is (510) 268-8120.
- Is Onastacia Fields's NPI active?
- Yes — Onastacia Fields's NPI (1700607504) is active in the NPPES registry as of the last update on 2024-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.