Hadi Siddiqui, D.O., M.P.H.
NPI 1639361413ActiveIndividual· Internal Medicine, Gastroenterology· Morris, IL
Internal Medicine, Gastroenterology (D.O., M.P.H.) with Loyola University Medical Center and 1 other group, practicing in Morris, Illinois. Their prescriptions cost Medicare Part D more than their services did: $277,534 for 925 claims, against $50,353 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $236.17 in all, mostly food and beverage. Lists Loyola Gottlieb Memorial Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1639361413 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O., M.P.H. |
| Sole proprietor | No |
| NPI issued | Aug 15, 2007 |
| Last updated in NPPES | Jun 1, 2023 |
| Certified by provider | Jun 1, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 02005178A | IN |
| Internal Medicine, Gastroenterology | 207RG0100X | Q0562 | TX |
| Internal Medicine, Gastroenterology | 207RG0100X | 036-140810 | 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 - Gastroenterology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 257 |
|---|---|
| Services billed | 490 across 41 procedure codes |
| Paid by Medicare | $50,353 |
Part D prescriptions in 2024
| Prescriptions (claims) | 925 · 1,623 30-day fills |
|---|---|
| Patients | 346 |
| Total drug cost | $277,534 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Loyola University Medical CenterMaywood, IL · 953 clinicians
- Adventist Health Partners, Inc.Lombard, IL · 255 clinicians
Hospital affiliations
- Loyola Gottlieb Memorial HospitalMelrose Park, IL
- Loyola University Medical CenterMaywood, IL
- Uchicago Medicine Adventhealth BolingbrookBolingbrook, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$236.17 · 16 payments from 2 companies
- 2024$436.48 · 17 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $180.25 | 13 |
| Phathom Pharmaceuticals, Inc. | $55.92 | 3 |
What the 2025 payments were for
- Food and Beverage$236.17 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Morris
- 1427062850
- 1558563148
- 1831369800
- 1922173012