Ayesha Siddiqi, M.D.
NPI 1003878299ActiveIndividual· Allergy & Immunology· Chicago, IL
Allergy & Immunology (M.D.) with Allergy and Asthma Associates of Dupage, P.C., practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $53,814 for 121 claims, against $3,726 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $483.43 in all, mostly food and beverage.
Overview
| NPI | 1003878299 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 4, 2006 |
| Last updated in NPPES | Sep 9, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 036087798 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 26 |
|---|---|
| Services billed | 257 across 10 procedure codes |
| Paid by Medicare | $3,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 121 · 156 30-day fills |
|---|---|
| Patients | 37 |
| Total drug cost | $53,814 |
| Generic share | 74% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergy and Asthma Associates of Dupage, P.C.Naperville, IL · 4 clinicians
Industry payments (Open Payments)
- 2025$483.43 · 22 payments from 4 companies
- 2024$402.06 · 17 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $228.20 | 8 |
| Glaxosmithkline, LLC. | $168.47 | 9 |
| Csl Behring | $52.81 | 3 |
| Novartis Pharmaceuticals Corporation | $33.95 | 2 |
What the 2025 payments were for
- Food and Beverage$483.43 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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