Abdullah B. Chahin, MD
NPI 1972736890ActiveIndividual· Internal Medicine, Critical Care Medicine· Chicago Ridge, IL
Internal Medicine, Critical Care Medicine (MD) with Loyola University Medical Center and 2 other groups, practicing in Chicago Ridge, Illinois. 242 Medicare patients in 2024, $48,378 paid; nearly all of their 130 Part D prescriptions were generic (99%). Lists Ingalls Memorial Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1972736890 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 26, 2009 |
| Last updated in NPPES | Apr 2, 2026 |
| Certified by provider | Apr 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 036155515 | IL |
| Internal Medicine | 207R00000X | 036155515 | IL |
| Internal Medicine, Infectious Disease | 207RI0200X | 036155515 | 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 - Critical Care (Intensivists) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 242 |
|---|---|
| Services billed | 395 across 15 procedure codes |
| Paid by Medicare | $48,378 |
Part D prescriptions in 2024
| Prescriptions (claims) | 130 · 193 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $24,055 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Critical Care (Intensivists) |
| Secondary specialties | Infectious Disease, Internal Medicine |
Medical groups
- Loyola University Medical CenterMaywood, IL · 953 clinicians
- Midwest Pulmonary Critical Care and Sleep Consultants LLCChicago Ridge, IL · 32 clinicians
- Hospitalist Physicians of Illinois, P.C.Harvey, IL · 13 clinicians
Hospital affiliations
- Ingalls Memorial HospitalHarvey, IL
- Loyola Gottlieb Memorial HospitalMelrose Park, IL
- Loyola University Medical CenterMaywood, IL
- Osf Little Company of Mary Medical CenterEvergreen Park, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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