David D. Nelsen, MD
NPI 1417184169ActiveIndividual· Dermatology· Janesville, WI
Dermatology (MD) in Janesville, Wisconsin, trained at University of Minnesota Medical School (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $1,983,663 for 2,148 claims, against $158,548 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $203,429 in all, mostly speaking and faculty fees.
Overview
| NPI | 1417184169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 19, 2009 |
| Last updated in NPPES | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | 54912-20 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (IL); Practitioner - Dermatology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,695 |
|---|---|
| Services billed | 4,910 across 70 procedure codes |
| Paid by Medicare | $158,548 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,148 · 2,822 30-day fills |
|---|---|
| Patients | 717 |
| Total drug cost | $1,983,663 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Dermatology |
Medical groups
- Mercy Health System CorporationJanesville, WI · 753 clinicians
- Rockford Health PhysiciansRockford, IL · 521 clinicians
Hospital affiliations
- Javon Bea HospitalRockford, IL
- Mercy Health System CorpJanesville, WI
Industry payments (Open Payments)
- 2025$203,429 · 241 payments from 14 companies
- 2024$181,735 · 268 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $114,586 | 131 |
| Sun Pharmaceutical Industries Inc. | $68,238 | 56 |
| Amgen Inc. | $16,683 | 21 |
| Arcutis Biotherapeutics, Inc. | $3,055 | 10 |
| Regeneron Healthcare Solutions, Inc. | $271.57 | 3 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$120,600 · 35 payments
- Compensation for serving as faculty or as a speaker for a medical education program$44,880 · 9 payments
- Consulting Fee$22,385 · 6 payments
- Travel and Lodging$11,767 · 34 payments
- Food and Beverage$3,624 · 155 payments
- Education$173.25 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Dermatology providers in Janesville
- 1518223148
- 1619928918