Umar Kamal Siddiqui, MD
NPI 1578055984ActiveIndividual· Internal Medicine· Appleton, WI
Internal Medicine (MD) with St. Luke's Hospital of Duluth, practicing in Appleton, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $483,172 for 5,383 claims, against $47,054 paid for services in 2024. Novo Nordisk Inc reported $16.52 in payments in 2025, mostly food and beverage. Lists Aspirus Ironwood Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1578055984 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 31, 2018 |
| Last updated in NPPES | Sep 10, 2026 |
| Certified by provider | Sep 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 85874 | WI |
| Internal Medicine, Addiction Medicine | 207RA0401X | 036157315 | IL |
| Internal Medicine, Addiction Medicine | 207RA0401X | 72173 | MN |
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 - Hospitalist (IL); Practitioner - Internal Medicine (MN); Practitioner - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 146 |
|---|---|
| Services billed | 571 across 25 procedure codes |
| Paid by Medicare | $47,054 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,383 · 9,758 30-day fills |
|---|---|
| Patients | 370 |
| Total drug cost | $483,172 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Addiction Medicine |
Medical group
- St. Luke's Hospital of DuluthDuluth, MN · 405 clinicians
Hospital affiliations
- Aspirus Ironwood HospitalIronwood, MI
- Range Regional Health ServicesHibbing, MN
- St Lukes HospitalDuluth, MN
Other facilities
- Aspirus St. Luke's at Home - Home Care - DuluthHome health agency · Duluth, MN
Industry payments (Open Payments)
- 2025$16.52 · 1 payment from 1 company
- 2024$18.74 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $16.52 | 1 |
What the 2025 payments were for
- Food and Beverage$16.52 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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