DR. DONALD T ELLIS II MD
NPI 1326048760
Emergency Medicine in Sioux Falls, SD
About Dr. Donald T Ellis Ii Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DONALD T ELLIS II MD (NPI 1326048760) is an individual emergency medicine provider in Sioux Falls, South Dakota, licensed in South Dakota (13433) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Durham.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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)
Dr. Donald T Ellis Ii Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Donald Ellis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sioux Falls, SD 57105
- Reassigned Medicare billing, South Dakota enrollment
- 1,097 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 57105 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SIOUX FALLS, SD 57105
SIOUX FALLS, SD 57105
SIOUX FALLS, SD 57105
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 Donald Ellis's NPI number?
The NPI number for Donald Ellis is 1326048760. It was assigned to this individual provider in the NPPES registry on July 28, 2005.
Where is Donald Ellis located?
Donald Ellis practices at 1305 W 18th St, Sioux Falls, SD 57105. The listed phone number is (605) 333-1000.
What is Donald Ellis's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Donald Ellis enrolled in Medicare?
Yes. Donald Ellis is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Donald Ellis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Ellis reassigns Medicare benefits to Sanford Medical Center (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 Donald Ellis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Donald Ellis accept?
Health plans from Wellmark Health Plan of Iowa, Inc. and Wellmark of South Dakota, Inc. list Donald Ellis 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 Donald Ellis was last updated on December 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Donald T Ellis II, MD · NPI 1326048760
Emergency Medicine physician in Sioux Falls, South Dakota. Individual provider, active in the CMS NPPES registry since July 28, 2005.
## Identity
- **NPI:** 1326048760 (Entity type: Individual)
- **Enumerated:** July 28, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 13433 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 1305 W 18TH ST, Sioux Falls, SD 57105-0401
- **Phone:** (605) 333-1000
## 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:** Sanford Medical Center (NPI 1093090342, Sioux Falls, SD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1326048760) · Data from the CMS NPPES public registry.