David Philip Gerard, M.D.
NPI 1942312210ActiveIndividual· Internal Medicine, Gastroenterology· Downers Grove, IL
Internal Medicine, Gastroenterology (M.D.) in Downers Grove, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 1987). 325 Medicare patients in 2024, $149,304 paid; nearly all of their 998 Part D prescriptions were generic (94%). Takeda Pharmaceuticals U.S.A., Inc. was the largest of 9 companies reporting payments in 2025, $488.39 in all, mostly food and beverage.
Overview
| NPI | 1942312210 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Jan 5, 2022 |
| Certified by provider | Jan 5, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036-086438 | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 325 |
|---|---|
| Services billed | 2,123 across 55 procedure codes |
| Paid by Medicare | $149,304 |
Part D prescriptions in 2024
| Prescriptions (claims) | 998 · 2,157 30-day fills |
|---|---|
| Patients | 240 |
| Total drug cost | $94,738 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
Hospital affiliations
- Advocate Good Samaritan HospitalDowners Grove, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
Industry payments (Open Payments)
- 2025$488.39 · 23 payments from 9 companies
- 2024$541.40 · 23 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $195.79 | 9 |
| Pfizer Inc. | $66.19 | 3 |
| Novo Nordisk Inc | $57.03 | 2 |
| Orphalan Inc | $42.90 | 2 |
| Phathom Pharmaceuticals, Inc. | $33.41 | 3 |
What the 2025 payments were for
- Food and Beverage$456.12 · 22 payments
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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