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Kelsey Mussig
NPI 1891265526 · Behavior Technician · Costa Mesa, CA
Kelsey Mussig is a Behavior Technician provider in Costa Mesa, CA (NPI 1891265526).
Provider details
- NPI number
- 1891265526
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(60/100 index)
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
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
1111 Baker St
Costa Mesa, CA 92626-4138
Phone: (818) 241-6780
Street-level locationGet directions
Mailing address
206 N Jackson St Ste 206
Glendale, CA 91206-4330
Registry dates
- Enumerated
- 2018-11-26
- Last updated
- 2018-11-26
Frequently asked questions
- What is Kelsey Mussig's NPI number?
- Kelsey Mussig's National Provider Identifier (NPI) is 1891265526, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kelsey Mussig's specialty?
- Kelsey Mussig is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Kelsey Mussig located?
- Kelsey Mussig's practice location on file with NPPES is 1111 Baker St, Costa Mesa, CA 92626-4138.
- What is Kelsey Mussig's phone number?
- The practice phone number listed in the NPPES registry for Kelsey Mussig is (818) 241-6780.
- Is Kelsey Mussig's NPI active?
- Yes — Kelsey Mussig's NPI (1891265526) is active in the NPPES registry as of the last update on 2018-11-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.