Ammar Adnan Bayrakdar, MD
NPI 1841243334ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Evergreen Park, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Diabetes and Endocrine Care Ltd, practicing in Evergreen Park, Illinois. Their prescriptions cost Medicare Part D more than their services did: $2,200,764 for 5,066 claims, against $179,109 paid for services in 2024. Novo Nordisk Inc was the largest of 32 companies reporting payments in 2025, $76,251 in all, mostly speaking and faculty fees. Lists Advocate Christ Hospital & Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1841243334 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 18, 2006 |
| Last updated in NPPES | Mar 18, 2022 |
| Certified by provider | Mar 18, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036086922 | 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 | 544 |
|---|---|
| Services billed | 5,987 across 36 procedure codes |
| Paid by Medicare | $179,109 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,066 · 9,193 30-day fills |
|---|---|
| Patients | 585 |
| Total drug cost | $2,200,764 |
| Generic share | 35% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
Medical group
- Diabetes and Endocrine Care LtdEvergreen Park, IL · 2 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
- Palos Community HospitalPalos Heights, IL
Industry payments (Open Payments)
- 2025$76,251 · 170 payments from 32 companies
- 2024$31,944 · 156 payments from 29 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $62,437 | 53 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $6,041 | 14 |
| Lilly USA, LLC | $5,189 | 11 |
| Amgen Inc. | $356.51 | 13 |
| Sanofi-Aventis U.S. LLC | $323.64 | 4 |
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$62,050 · 26 payments
- Travel and Lodging$9,338 · 17 payments
- Food and Beverage$4,846 · 126 payments
- Education$16.88 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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