Sean O'Neil, MD
NPI 1437738606 · Student in an Organized Health Care Education/Training Program · La Crosse, WI
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sean O'Neil, MD is a Student in an Organized Health Care Education/Training Program provider in La Crosse, WI (NPI 1437738606).
Provider details
- NPI number
- 1437738606
- 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
5 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Metformin Hclbrand: Metformin Hcl Er | 27 |
| Atorvastatin Calcium | 23 |
| Acyclovir | 19 |
| Levothyroxine Sodium | 16 |
| Omeprazole | 16 |
| Dapagliflozin Propanediolbrand: Farxiga | 13 |
| Trazodone Hcl | 12 |
| Dexamethasone | 12 |
| Clopidogrel Bisulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-05
- Last updated
- 2021-04-05
- Certified
- 2021-04-05
Frequently asked questions
- What is Sean O'Neil's NPI number?
- Sean O'Neil's National Provider Identifier (NPI) is 1437738606, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sean O'Neil's specialty?
- Sean O'Neil 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 Sean O'Neil located?
- Sean O'Neil's practice location on file with NPPES is 1836 South Ave, La Crosse, WI 54601-5429.
- What is Sean O'Neil's phone number?
- The practice phone number listed in the NPPES registry for Sean O'Neil is (608) 782-7300.
- Does Sean O'Neil accept Medicare?
- Sean O'Neil is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sean O'Neil's NPI active?
- Yes — Sean O'Neil's NPI (1437738606) is active in the NPPES registry as of the last update on 2021-04-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.