Iffat Sultana Ahmed, D.O.
NPI 1063668192ActiveIndividual· Internal Medicine· Naperville, IL
Internal Medicine (D.O.) in Naperville, Illinois, trained at Midwestern University, Chicago College of Osteopathic Med (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $572,049 for 1,125 claims, against $60,337 paid for services in 2024. Lilly USA, LLC was the largest of 14 companies reporting payments in 2025, $83,146 in all, mostly speaking and faculty fees.
Overview
| NPI | 1063668192 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Aug 8, 2008 |
| Last updated in NPPES | Aug 2, 2023 |
| Certified by provider | Aug 2, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-125768 | 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 | 116 |
|---|---|
| Services billed | 1,042 across 27 procedure codes |
| Paid by Medicare | $60,337 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,125 · 1,987 30-day fills |
|---|---|
| Patients | 195 |
| Total drug cost | $572,049 |
| Generic share | 59% of claims |
Education and affiliations
| Medical school | Midwestern University, Chicago College of Osteopathic Med |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Industry payments (Open Payments)
- 2025$83,146 · 234 payments from 14 companies
- 2024$98,007 · 306 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $79,139 | 129 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $1,747 | 9 |
| Abbvie Inc. | $581.43 | 25 |
| Bayer Healthcare Pharmaceuticals Inc. | $480.46 | 6 |
| Novo Nordisk Inc | $376.12 | 17 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$62,475 · 63 payments
- Travel and Lodging$9,062 · 31 payments
- Consulting Fee$8,050 · 4 payments
- Food and Beverage$3,559 · 136 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 114 internal medicine physicians in Naperville · All internal medicine physicians in Illinois