Ethan Leif, MD
Student in an Organized Health Care Education/Training Program · Sioux Falls, SD
Ethan Leif, MD is a student in an organized health care education/training program with a practice address in Sioux Falls, South Dakota, and NPI 1932896123, issued on Apr 19, 2023. Check the license with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ethan Leif
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 1115 E 20TH St, Sioux Falls, SD 57105
- Phone
- (605) 575-1644
- Enumerated
- Apr 19, 2023
- Record last updated
- Sep 24, 2025
- Medicare enrollment
- Enrolled (PECOS I20251014002005); accepts Medicare assignment
- Medical or professional school
- Sanford School Of Medicine Of University Of South Dakota, 2023
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 298 in South Dakota → Look up another NPI →
Also registered at 1115 E 20TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jay Allison, MDFamily Medicine Physician1235195041
- Jennifer Ball, PHARMDAmbulatory Care Pharmacist1356698336
- Noah Bensen, MDStudent in an Organized Health Care Education/Training Program1346186095
- Gaven Bowman, MDStudent in an Organized Health Care Education/Training Program1396548574
Verify Ethan Leif in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average student in an organized health care education/training program in 2024
223 Medicare Part D claims for 43 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Atorvastatin Calcium24 claims
- Metformin Hcl23 claims
- Ozempic16 claims
- Lisinopril14 claims
- Amlodipine Besylate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Avera MckennanSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ethan Leif among 298 student in an organized health care education/training program records in South Dakota
Ethan Leif, MD is one of 298 student in an organized health care education/training program records with a practice address in South Dakota. 34% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 21% of them.
- NPI issued2023 · 21% of these records are older, 67% newer
- In a Medicare fileYes · 34% of these records are
- In the CMS Doctors and Clinicians fileYes · 5% of these records are
- Graduated2023 · median 2023 among the 15 with a school on file
- Record last updated2025 · 11% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
229 student in an organized health care education/training program records list a practice address in Sioux Falls
They are 229 of the 6,563 NPPES records with a practice address in Sioux Falls, and 298 student in an organized health care education/training program records in South Dakota.
All 298 in South Dakota → Every provider in Sioux Falls → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Betul AytekinSioux Falls, SD 571051174723381
- Elizabeth BlearsSioux Falls, SD 571051376953158
- Alan CookSioux Falls, SD 571051639585953
- Jordan Eisenmann, MDSioux Falls, SD 571051578063814
- Jaswanth Jasti, MDSioux Falls, SD 571051669050803
- Samantha KappenmanSioux Falls, SD 571051356830509
- Maria Koenen, MDSioux Falls, SD 571051013573138
- Kara Nedich, DOSioux Falls, SD 571051275859167
Common questions
What is Ethan Leif, MD's NPI number?
Ethan Leif, MD's National Provider Identifier (NPI) is 1932896123, issued on Apr 19, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Ethan Leif, MD located?
The NPPES record lists a practice address at 1115 E 20TH St, Sioux Falls, SD, 57105. Phone: (605) 575-1644. Providers update this record themselves, so call before visiting.
How can I verify Ethan Leif, MD's license?
Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
How much does Ethan Leif, MD prescribe under Medicare Part D?
In 2024, Ethan Leif, MD had 223 Medicare Part D claims for 43 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.