Gil E. Harmon, MD
NPI 1104265339ActiveIndividual· Internal Medicine, Hematology & Oncology· La Crosse, WI
Internal Medicine, Hematology & Oncology (MD) in La Crosse, Wisconsin, trained at Mayo Medical School (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $1,141,518 for 946 claims, against $49,544 paid for services in 2024. Aveo Pharmaceuticals, Inc. reported $20.00 in payments in 2025, mostly education.
Overview
| NPI | 1104265339 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 20, 2013 |
| Last updated in NPPES | Aug 23, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 65726-20 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 579 across 18 procedure codes |
| Paid by Medicare | $49,544 |
Part D prescriptions in 2024
| Prescriptions (claims) | 946 · 1,328 30-day fills |
|---|---|
| Patients | 149 |
| Total drug cost | $1,141,518 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | Mayo Medical School |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Gundersen Lutheran Medical Center IncLa Crosse, WI · 895 clinicians
- Gundersen Clinic LtdOnalaska, WI · 418 clinicians
Hospital affiliations
- Gundersen Lutheran Medical CenterLa Crosse, WI
- Gundersen St Josephs Hospital and ClinicsHillsboro, WI
- Tomah Memorial HospitalTomah, WI
Industry payments (Open Payments)
- 2025$20.00 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aveo Pharmaceuticals, Inc. | $20.00 | 1 |
What the 2025 payments were for
- Education$20.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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