Quick answers
- Which hospitals does Ethan M. Leif work at?
- Medicare's official clinician data lists Ethan M. Leif at 1 hospital: Avera McKennan Hospital & University Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ethan M. Leif see patients?
- Medicare's clinician data lists 3 practice locations, including Sioux Falls, SD. Call before your visit to confirm the address.
- What is Ethan M. Leif's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Ethan M. Leif accept Medicare assignment?
- Yes. Medicare's clinician data says Ethan M. Leif accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Ethan M. Leif?
- (605) 336-2140, as listed in official Medicare / NPI Registry data.
- What is Ethan M. Leif's NPI number?
- 1932896123. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ethan M. Leif works
Medicare's Facility Affiliation Data lists Ethan M. Leif at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
Practice locations
Addresses where Ethan M. Leif is enrolled with Medicare (CMS data updated 2026-10-02).
- 1200 S 7th AveSioux Falls, SD 57105 (605) 336‑2140
- 1600 S Highline AveSioux Falls, SD 57110
- 1910 W 69th StSioux Falls, SD 57108 (605) 322‑5200
Group practices
Medicare enrollment lists Ethan M. Leif as a member of this group (CMS data updated 2026-10-02).
- Avera McKennan959 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Sioux Falls
Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932896123 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians