Zahid Afzal, MD
NPI 1528044518ActiveIndividual· Internal Medicine, Gastroenterology· Orland Park, IL
Internal Medicine, Gastroenterology (MD) with Health Service Systems, Inc and 2 other groups, practicing in Orland Park, Illinois. 683 Medicare patients in 2024, $181,300 paid; nearly all of their 733 Part D prescriptions were generic (93%). Janssen Biotech, Inc. was the largest of 6 companies reporting payments in 2025, $203.62 in all, mostly food and beverage. Lists Silver Cross Hospital and Medical Centers as a hospital affiliation.
Overview
| NPI | 1528044518 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 21, 2005 |
| Last updated in NPPES | Aug 28, 2024 |
| Certified by provider | Aug 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036113721 | IL |
| Internal Medicine | 207R00000X | 036113721 | 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 - Gastroenterology (IL); Practitioner - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 683 |
|---|---|
| Services billed | 1,628 across 55 procedure codes |
| Paid by Medicare | $181,300 |
Part D prescriptions in 2024
| Prescriptions (claims) | 733 · 1,525 30-day fills |
|---|---|
| Patients | 325 |
| Total drug cost | $126,321 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical groups
- Health Service Systems, IncNew Lenox, IL · 68 clinicians
- Premier Suburban Medical Group, PLLCNew Lenox, IL · 29 clinicians
- Pinnacle Gastroenterology SCManteno, IL · 2 clinicians
Hospital affiliation
- Silver Cross Hospital and Medical CentersNew Lenox, IL
Industry payments (Open Payments)
- 2025$203.62 · 8 payments from 6 companies
- 2024$131.75 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $76.99 | 3 |
| Regeneron Healthcare Solutions, Inc. | $38.24 | 1 |
| Genzyme Corporation | $26.59 | 1 |
| Qol Medical, LLC | $24.67 | 1 |
| Novo Nordisk Inc | $22.62 | 1 |
What the 2025 payments were for
- Food and Beverage$203.62 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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