Kelli Willis, MSW,CSW-PIP
NPI 1558613752 · Clinical Social Worker · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kelli Willis, MSW,CSW-PIP is a Clinical Social Worker provider in Sioux Falls, SD (NPI 1558613752).
Provider details
- NPI number
- 1558613752
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- MSW,CSW-PIP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 3407 (SD)
Specialties & taxonomies
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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1200 S 7th AveSioux Falls, SD 57105-0900Phone: (605) 336-2140
Registry dates
- Enumerated
- 2012-10-11
- Last updated
- 2018-06-01
Frequently asked questions
- What is Kelli Willis's NPI number?
- Kelli Willis's National Provider Identifier (NPI) is 1558613752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kelli Willis's specialty?
- Kelli Willis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Kelli Willis located?
- Kelli Willis's practice location on file with NPPES is 1200 S 7th Ave, Sioux Falls, SD 57105.
- What is Kelli Willis's phone number?
- The practice phone number listed in the NPPES registry for Kelli Willis is (605) 336-2140.
- Does Kelli Willis accept Medicare?
- Kelli Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kelli Willis's NPI active?
- Yes — Kelli Willis's NPI (1558613752) is active in the NPPES registry as of the last update on 2018-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.