Nazneen Ahmed, MD
NPI 1215926621ActiveIndividual· Internal Medicine· Bloomingdale, IL
Internal Medicine (MD) in Bloomingdale, Illinois, trained at University of Toledo College of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $753,588 for 8,213 claims, against $132,209 paid for services in 2024. Lilly USA, LLC reported $110.09 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1215926621 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 18, 2005 |
| Last updated in NPPES | Nov 4, 2025 |
| Certified by provider | Nov 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036-098865 | 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 | 303 |
|---|---|
| Services billed | 2,359 across 46 procedure codes |
| Paid by Medicare | $132,209 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,213 · 18,097 30-day fills |
|---|---|
| Patients | 539 |
| Total drug cost | $753,588 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Toledo College of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
- Advocate Sherman HospitalElgin, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine McHenryMcHenry, IL
- Saint Joseph Hospital-ElginElgin, IL
Industry payments (Open Payments)
- 2025$110.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $110.09 | 1 |
What the 2025 payments were for
- Food and Beverage$110.09 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 internal medicine physicians in Bloomingdale · All internal medicine physicians in Illinois