Ethan Leif, MD
NPI 1932896123 · Student in an Organized Health Care Education/Training Program · Sioux Falls, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Leif, MD is a Student in an Organized Health Care Education/Training Program provider in Sioux Falls, SD (NPI 1932896123).
Provider details
- NPI number
- 1932896123
- Entity type
- Individual
- Primary specialty
- Student in an Organized Health Care Education/Training ProgramStudent, Health Care
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 24 |
| Metformin Hcl | 23 |
| Semaglutidebrand: Ozempic | 16 |
| Lisinopril | 14 |
| Amlodipine Besylate | 13 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1600 S Highline AveSioux Falls, SD 57110-1007Phone: (605) 322-2945
Registry dates
- Enumerated
- 2023-04-19
- Last updated
- 2025-09-24
- Certified
- 2025-09-24
Frequently asked questions
- What is Ethan Leif's NPI number?
- Ethan Leif's National Provider Identifier (NPI) is 1932896123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Leif's specialty?
- Ethan Leif is listed in the NPPES registry with a primary specialty of Student in an Organized Health Care Education/Training Program (Student, Health Care).
- Where is Ethan Leif located?
- Ethan Leif's practice location on file with NPPES is 1115 E 20th St, Sioux Falls, SD 57105-1013.
- What is Ethan Leif's phone number?
- The practice phone number listed in the NPPES registry for Ethan Leif is (605) 575-1644.
- Does Ethan Leif accept Medicare?
- Ethan Leif is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Leif's NPI active?
- Yes — Ethan Leif's NPI (1932896123) is active in the NPPES registry as of the last update on 2025-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.