RACHEL E THIES MD
NPI 1811351802
Preventive Medicine - Occupational Medicine in Sioux Falls, SD
About Rachel E Thies Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RACHEL E THIES MD (NPI 1811351802) is an individual occupational medicine provider in Sioux Falls, South Dakota, licensed in South Dakota (12216) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS.
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 (PECOS)
Rachel E Thies Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Rachel Thies reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sioux Falls, SD 57104
- Reassigned Medicare billing, South Dakota enrollment
- 1,277 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SIOUX FALLS, SD 57104
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 Rachel Thies's NPI number?
The NPI number for Rachel Thies is 1811351802. It was assigned to this individual provider in the NPPES registry on April 6, 2016.
Where is Rachel Thies located?
Rachel Thies practices at 900 E 54th St N Ste 200, Sioux Falls, SD 57104. The listed phone number is (605) 328-9300.
What is Rachel Thies's specialty?
The primary specialty registered for this NPI is Preventive Medicine, specializing in Occupational Medicine, with taxonomy code 2083X0100X.
Is Rachel Thies enrolled in Medicare?
Yes. Rachel Thies is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Rachel Thies's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Thies reassigns Medicare benefits to Avera Mckennan (Sioux Falls, SD). The 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 Rachel Thies's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rachel Thies accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Wellmark Health Plan of Iowa, Inc. and 1 other insurer list Rachel Thies 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 Rachel Thies was last updated on November 2, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Rachel E Thies, MD · NPI 1811351802
Occupational Medicine physician in Sioux Falls, South Dakota. Individual provider, active in the CMS NPPES registry since April 6, 2016.
## Identity
- **NPI:** 1811351802 (Entity type: Individual)
- **Enumerated:** April 6, 2016
- **Primary specialty:** Preventive Medicine - Occupational Medicine · taxonomy 2083X0100X
- **State license:** 12216 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 E 54TH ST N STE 200, Sioux Falls, SD 57104-0686
- **Phone:** (605) 328-9300
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Avera Mckennan (NPI 1083894067, Sioux Falls, SD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 2, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1811351802) · Data from the CMS NPPES public registry.