Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ethan Leif, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1932896123

Ethan Leif, MD is a Family Practice in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2023, 3 years ago. Practices with Avera McKennan, a 962-clinician group, works from 2 locations and accepts Medicare assignment.

Years since qualifying
3
Trained at
Sanford School of Medicine of University of South Dakota
In the registry since
2023
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1115 E 20th St
Sioux Falls, SD 57105-1013
Phone: (605) 575-1644
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1600 S Highline Ave, Sioux Falls, SD 57110-1007 — (605) 322-2945

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X

Record details

NPI number1932896123
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2023
Last updated in NPPESSeptember 24, 2025
Certification dateSeptember 24, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2023 (3 years in practice)
Group practice Avera McKennan — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Sioux Falls