Aiman Riaz, M.D
NPI 1992157903ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· La Crosse, WI
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D) with Gundersen Lutheran Medical Center Inc, practicing in La Crosse, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $687,385 for 1,746 claims, against $18,357 paid for services in 2024. Sanofi-Aventis U.S. LLC reported $55.07 in payments in 2025, mostly food and beverage. Lists Gundersen Lutheran Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1992157903 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 1, 2016 |
| Last updated in NPPES | Aug 25, 2022 |
| Certified by provider | Aug 25, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 72029 | WI |
| Internal Medicine | 207R00000X | 62724 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | 6153-851 | 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 - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 152 |
|---|---|
| Services billed | 451 across 11 procedure codes |
| Paid by Medicare | $18,357 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,746 · 3,789 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $687,385 |
| Generic share | 43% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Gundersen Lutheran Medical Center IncLa Crosse, WI · 895 clinicians
Hospital affiliations
- Gundersen Lutheran Medical CenterLa Crosse, WI
- Veterans Memorial HospitalWaukon, IA
Industry payments (Open Payments)
- 2025$55.07 · 1 payment from 1 company
- 2024$245.21 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sanofi-Aventis U.S. LLC | $55.07 | 1 |
What the 2025 payments were for
- Food and Beverage$55.07 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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