Muhammad N. Khan, MD
NPI 1598767493ActiveIndividual· Internal Medicine· Decatur, IL
Internal Medicine (MD) with Decatur Memorial Hospital, practicing in Decatur, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,825,419 for 25,733 claims, against $165,079 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 6 companies reporting payments in 2025, $318.19 in all, mostly food and beverage. Lists Decatur Memorial Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1598767493 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 11, 2005 |
| Last updated in NPPES | Sep 17, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036094564 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 749 |
|---|---|
| Services billed | 2,990 across 17 procedure codes |
| Paid by Medicare | $165,079 |
Part D prescriptions in 2024
| Prescriptions (claims) | 25,733 · 39,926 30-day fills |
|---|---|
| Patients | 890 |
| Total drug cost | $1,825,419 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Decatur Memorial HospitalDecatur, IL · 174 clinicians
Hospital affiliations
- Decatur Memorial HospitalDecatur, IL
- Memorial Medical CenterSpringfield, IL
- Sarah Bush Lincoln Health CenterMattoon, IL
- St Marys HospitalDecatur, IL
Other facilities
- Elara Caring VHome health agency · Springfield, IL
- Enhabit Home HealthHome health agency · Springfield, IL
- Hospice Care of IllinoisHospice · Springfield, IL
- Town Square Hospice Illinois LLCHospice · Monticello, IL
- Traditions HealthHospice · Lisle, IL
- Arc at Hickory PointNursing home · Forsyth, IL
- Fair Havens Senior LivingNursing home · Decatur, IL
Industry payments (Open Payments)
- 2025$318.19 · 9 payments from 6 companies
- 2024$227.76 · 11 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $224.83 | 4 |
| E.R. Squibb & Sons, L.L.C. | $19.61 | 1 |
| Almatica Pharma LLC | $19.59 | 1 |
| Lilly USA, LLC | $18.33 | 1 |
| Bayer Healthcare Pharmaceuticals Inc. | $18.02 | 1 |
What the 2025 payments were for
- Food and Beverage$318.19 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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