Tahir A. Abbasi, M.D.
NPI 1255495701ActiveIndividual· Internal Medicine, Cardiovascular Disease· Hazel Crest, IL
Internal Medicine, Cardiovascular Disease (M.D.) with Chandra Diagnostic Cardiology Ltd and 1 other group, practicing in Hazel Crest, Illinois. Their prescriptions cost Medicare Part D more than their services did: $775,460 for 7,847 claims, against $62,897 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $760.56 in all, mostly food and beverage. Lists Advocate Trinity Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1255495701 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 20, 2006 |
| Last updated in NPPES | Apr 12, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 036068401 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 328 |
|---|---|
| Services billed | 834 across 27 procedure codes |
| Paid by Medicare | $62,897 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,847 · 12,033 30-day fills |
|---|---|
| Patients | 337 |
| Total drug cost | $775,460 |
| Generic share | 82% of claims |
Education and affiliations
| Graduation year | 1977 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Geriatric Medicine, Internal Medicine |
Medical groups
- Chandra Diagnostic Cardiology LtdChicago, IL · 4 clinicians
- Parikh and Abbasi MdscHazel Crest, IL · 2 clinicians
Hospital affiliations
- Advocate Trinity HospitalChicago, IL
- Ingalls Memorial HospitalHarvey, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$760.56 · 39 payments from 10 companies
- 2024$602.13 · 33 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $382.46 | 20 |
| Merck Sharp & Dohme LLC | $147.87 | 8 |
| Lilly USA, LLC | $50.09 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $38.49 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $33.19 | 2 |
What the 2025 payments were for
- Food and Beverage$760.56 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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