ETHAN LEIF MD
NPI 1932896123
Family Medicine in Sioux Falls, SD
About Ethan Leif Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN LEIF MD (NPI 1932896123) is an individual family medicine provider in Sioux Falls, South Dakota, licensed in South Dakota (18967) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, is affiliated with Avera Mckennan Hospital & University Health Center, and is a graduate of Sanford School Of Medicine Of University Of South Dakota (2023).
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
Ethan Leif Md 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 Reassignment
Medicare enrollment records show Ethan Leif reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Sioux Falls, SD 57110
- 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Avera Mckennan Hospital & University Health Center
Acute Care Hospitals · Sioux Falls, SDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 57110 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SIOUX FALLS, SD 57110
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 Ethan Leif's NPI number?
The NPI number for Ethan Leif is 1932896123. It was assigned to this individual provider in the NPPES registry on April 19, 2023.
Where is Ethan Leif located?
Ethan Leif practices at 1600 S Highline Ave, Sioux Falls, SD 57110. The listed phone number is (605) 322-2945.
What is Ethan Leif's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Ethan Leif enrolled in Medicare?
Yes. Ethan Leif 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 organization bills Medicare for Ethan Leif's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Leif 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 Ethan Leif's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ethan Leif accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Wellmark Health Plan of Iowa, Inc. and Wellmark of South Dakota, Inc. list Ethan Leif 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 Ethan Leif affiliated with any hospitals?
According to CMS data, Ethan Leif is affiliated with Avera Mckennan Hospital & University Health Center.
When was this NPI record last updated?
The NPPES record for Ethan Leif was last updated on August 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days 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.
# Ethan Leif, MD · NPI 1932896123
Family Medicine physician in Sioux Falls, South Dakota. Individual provider, active in the CMS NPPES registry since April 19, 2023.
## Identity
- **NPI:** 1932896123 (Entity type: Individual)
- **Enumerated:** April 19, 2023
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 18967 (South Dakota)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 S HIGHLINE AVE, Sioux Falls, SD 57110-1007
- **Phone:** (605) 322-2945
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Avera Mckennan (NPI 1396711016, Sioux Falls, SD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Sanford School Of Medicine Of University Of South Dakota, class of 2023
## Record status
- **NPPES last updated:** August 28, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1932896123) · Data from the CMS NPPES public registry.