THOMAS ALLEN VIERECK CNP
NPI 1518526599
Nurse Practitioner in Yankton, SD
About Thomas Allen Viereck Cnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS ALLEN VIERECK CNP (NPI 1518526599) is an individual nurse practitioner in Yankton, South Dakota, licensed in South Dakota (CP001582) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, is affiliated with Avera Sacred Heart Hospital, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Thomas Allen Viereck Cnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Thomas Viereck reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Yankton, SD 57078
- Reassigned Medicare billing, South Dakota enrollment
- 227 clinicians in this Medicare group
Yankton, SD 57078
- Reassigned Medicare billing, South Dakota enrollment
- 59 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 16
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avera Sacred Heart Hospital
Acute Care Hospitals · Yankton, SDSt Michael's Hospital - Cah
Critical Access Hospitals · Tyndall, SDSanford Vermillion Hospital
Critical Access Hospitals · Vermillion, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57078 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Thomas Viereck's NPI number?
The NPI number for Thomas Viereck is 1518526599. It was assigned to this individual provider in the NPPES registry on June 12, 2019.
Where is Thomas Viereck located?
Thomas Viereck practices at 1104 W 8th St, Yankton, SD 57078. The listed phone number is (605) 665-7841.
What is Thomas Viereck's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Thomas Viereck enrolled in Medicare?
Yes. Thomas Viereck is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Thomas Viereck's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Viereck reassigns Medicare benefits to 2 organizations: Sacred Heart Health Services (Yankton, SD) and Yankton Medical Clinic PC (Yankton, SD). Each 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 Thomas Viereck's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Viereck accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Blue Cross and Blue Shield of Nebraska and 2 other insurers list Thomas Viereck 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.
Is Thomas Viereck affiliated with any hospitals?
According to CMS data, Thomas Viereck is affiliated with Avera Sacred Heart Hospital, St Michael's Hospital - Cah and Sanford Vermillion Hospital.
When was this NPI record last updated?
The NPPES record for Thomas Viereck was last updated on July 3, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.