Rachel Nessim
NPI 1780339192 · Behavior Analyst · Costa Mesa, CA
Rachel Nessim is a Behavior Analyst provider in Costa Mesa, CA (NPI 1780339192).
Provider details
- NPI number
- 1780339192
- Entity type
- Individual
- Primary specialty
- Behavior AnalystBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Behavior Analyst103K00000X
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
4 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
Mailing address
Registry dates
- Enumerated
- 2022-02-14
- Last updated
- 2022-02-14
- Certified
- 2022-02-14
Frequently asked questions
- What is Rachel Nessim's NPI number?
- Rachel Nessim's National Provider Identifier (NPI) is 1780339192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rachel Nessim's specialty?
- Rachel Nessim is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).
- Where is Rachel Nessim located?
- Rachel Nessim's practice location on file with NPPES is 3186 Airway Ave # Sitea, Costa Mesa, CA 92626-4650.
- What is Rachel Nessim's phone number?
- The practice phone number listed in the NPPES registry for Rachel Nessim is (714) 881-0427.
- Is Rachel Nessim's NPI active?
- Yes — Rachel Nessim's NPI (1780339192) is active in the NPPES registry as of the last update on 2022-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.