Issa Abedmahmoud, MD
NPI 1528042975ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Herrin, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Marshall Browning Hospital Association and 1 other group, practicing in Herrin, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,664,185 for 5,764 claims, against $24,716 paid for services in 2024. Abbott Laboratories was the largest of 9 companies reporting payments in 2025, $420.89 in all, mostly food and beverage. Lists Herrin Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1528042975 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 30, 2005 |
| Last updated in NPPES | Nov 18, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036097793 | IL |
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 - Endocrinology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 310 |
|---|---|
| Services billed | 523 across 6 procedure codes |
| Paid by Medicare | $24,716 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,764 · 9,443 30-day fills |
|---|---|
| Patients | 434 |
| Total drug cost | $1,664,185 |
| Generic share | 41% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
Medical groups
- Marshall Browning Hospital AssociationDu Quoin, IL · 32 clinicians
- Ahuja Bariatric and BeyondMount Vernon, IL · 7 clinicians
Hospital affiliations
- Herrin HospitalHerrin, IL
- Marshall Browning HospitalDu Quoin, IL
- Memorial Hospital of CarbondaleCarbondale, IL
- Pinckneyville Community HospitalPinckneyville, IL
- St Joseph Memorial HospitalMurphysboro, IL
Industry payments (Open Payments)
- 2025$420.89 · 20 payments from 9 companies
- 2024$622.27 · 32 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $104.23 | 5 |
| Lilly USA, LLC | $63.07 | 3 |
| Insulet Corporation | $57.77 | 2 |
| Corcept Therapeutics | $53.66 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $44.57 | 3 |
What the 2025 payments were for
- Food and Beverage$420.89 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records