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VICKI HARKNESS THERAPY SERVICES LLC
NPI 1811711070
Community/Behavioral Health in Sioux Falls, SD

Active since November 13, 2024
5625 S SOUTHEASTERN AVE, SIOUX FALLS, SD 57108(605) 351-2278 Get Directions Write a Review

NPPES record last updated: March 19, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Mar 19, 2026, Dec 30, 2025, Mar 26, 2025 and 2 more (5 updates tracked since 2024).

About Vicki Harkness Therapy Services Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VICKI HARKNESS THERAPY SERVICES LLC (NPI 1811711070) is a healthcare organization registered as a community/behavioral health in Sioux Falls, South Dakota and active in the NPI registry since November 2024. The organization lists Vicki Harkness, Owner/social Worker, as its authorized official.

NPPES Registry Identity

NPI1811711070
Entity TypeOrganization
Primary Taxonomy251S00000X
Legal Business NameVICKI HARKNESS THERAPY SERVICES LLC
Location Address5625 S SOUTHEASTERN AVESioux Falls, SD 57108-8600
Mailing Address6708 E Twin Pines DrSioux Falls, SD 57110-6311 · (605) 351-2278
Phone(605) 351-2278
Organization SubpartNo
Authorized OfficialVicki HarknessOwner/social Worker · (605) 351-2278
Enumeration DateNovember 13, 2024
Last NPPES UpdateMarch 19, 20265 updates tracked since enumeration
NPPES CertifiedMarch 19, 2026
✔ NPI 1811711070 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity/Behavioral HealthAgencies
Taxonomy Code251S00000X
Definition
A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
5625 S SOUTHEASTERN AVE, Sioux Falls, SD 57108
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Vicki Harkness Therapy Services Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Vicki Harkness Therapy Services LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Vicki Harkness, LCSW, MSW, MPH
Clinical Social Worker
NPI 1013739093
5625 S SOUTHEASTERN AVE
Sioux Falls, SD 57108
(605) 351-2278
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Vicki Harkness Therapy Services LLC's NPI number?

The NPI number for Vicki Harkness Therapy Services LLC is 1811711070. It was assigned to this organization in the NPPES registry on November 13, 2024.

Where is Vicki Harkness Therapy Services LLC located?

Vicki Harkness Therapy Services LLC is located at 5625 S Southeastern Ave, Sioux Falls, SD 57108. The listed phone number is (605) 351-2278.

What is Vicki Harkness Therapy Services LLC's specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

Is Vicki Harkness Therapy Services LLC enrolled in Medicare?

Yes. Vicki Harkness Therapy Services LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Vicki Harkness Therapy Services LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Vicki Harkness Therapy Services LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Vicki Harkness Therapy Services LLC accept?

Health plans from Sanford Health Plan list Vicki Harkness Therapy Services LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Vicki Harkness Therapy Services LLC was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.