Crystal Ellington-Greene
NPI 1356806459 · Behavior Analyst · Concord, CA
Crystal Ellington-Greene is a Behavior Analyst provider in Concord, CA (NPI 1356806459).
Provider details
- NPI number
- 1356806459
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 1-26-87316 (FL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Technician106S00000X
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-02-04
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Crystal Ellington-Greene's NPI number?
- Crystal Ellington-Greene's National Provider Identifier (NPI) is 1356806459, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Ellington-Greene's specialty?
- Crystal Ellington-Greene is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Crystal Ellington-Greene located?
- Crystal Ellington-Greene's practice location on file with NPPES is 1855 2nd St Ste B, Concord, CA 94519-2623.
- What is Crystal Ellington-Greene's phone number?
- The practice phone number listed in the NPPES registry for Crystal Ellington-Greene is (925) 239-9640.
- Is Crystal Ellington-Greene's NPI active?
- Yes — Crystal Ellington-Greene's NPI (1356806459) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.