Joel Sonnichsen
NPI 1013464676 · School Psychologist · Sioux Falls, SD
Joel Sonnichsen is a School Psychologist provider in Sioux Falls, SD (NPI 1013464676).
Provider details
- NPI number
- 1013464676
- Entity type
- Individual
- Primary specialty
- School PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 69019-1 (SD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-09-01
- Last updated
- 2016-09-01
Frequently asked questions
- What is Joel Sonnichsen's NPI number?
- Joel Sonnichsen's National Provider Identifier (NPI) is 1013464676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joel Sonnichsen's specialty?
- Joel Sonnichsen is listed in the NPPES registry with a primary specialty of School Psychologist (Behavioral Health & Social Service Providers).
- Where is Joel Sonnichsen located?
- Joel Sonnichsen's practice location on file with NPPES is 201 E 38th St, Sioux Falls, SD 57105-5815.
- What is Joel Sonnichsen's phone number?
- The practice phone number listed in the NPPES registry for Joel Sonnichsen is (605) 367-7924.
- Is Joel Sonnichsen's NPI active?
- Yes — Joel Sonnichsen's NPI (1013464676) is active in the NPPES registry as of the last update on 2016-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.