Mark K. Aasen, MD
NPI 1184609356ActiveIndividual· Pain Medicine, Interventional Pain Medicine· Milwaukee, WI
Pain Medicine, Interventional Pain Medicine (MD) in Milwaukee, Wisconsin, trained at University of Wisconsin School of Medicine (class of 1987). Mostly services rather than prescriptions: Medicare paid $85,244 for 223 patients in 2024, with only 34 Part D claims. Spinal Simplicity, LLC was the largest of 4 companies reporting payments in 2025, $196.03 in all, mostly food and beverage.
Overview
| NPI | 1184609356 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 10, 2005 |
| Last updated in NPPES | Sep 16, 2026 |
| Certified by provider | Sep 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pain Medicine, Interventional Pain Medicine Primary | 208VP0014X | 37593-020 | WI |
| Anesthesiology | 207L00000X | 37593-020 | 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 - Pain Management (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 223 |
|---|---|
| Services billed | 1,410 across 49 procedure codes |
| Paid by Medicare | $85,244 |
Part D prescriptions in 2024
| Prescriptions (claims) | 34 · 34 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $554.98 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Pain Management |
| Secondary specialties | Anesthesiology |
Medical group
- Pain Physicians of Wisconsin SCMilwaukee, WI · 26 clinicians
Industry payments (Open Payments)
- 2025$196.03 · 7 payments from 4 companies
- 2024$616.21 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Spinal Simplicity, LLC | $102.29 | 4 |
| Curonix LLC | $37.10 | 1 |
| Abbott Laboratories | $31.55 | 1 |
| Abbvie Inc. | $25.09 | 1 |
What the 2025 payments were for
- Food and Beverage$196.03 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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