William H. Gros, M.D.
NPI 1316902919ActiveIndividual· Family Medicine· La Grange, IL
Family Medicine (M.D.) in La Grange, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1980). Their prescriptions cost Medicare Part D more than their services did: $697,810 for 7,364 claims, against $180,018 paid for services in 2024. Pfizer Inc. reported $26.54 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1316902919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 18, 2006 |
| Last updated in NPPES | Aug 29, 2023 |
| Certified by provider | Aug 29, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 036062649 | IL |
| Specialist | 174400000X | 036062649 | 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 - Family Practice (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 385 |
|---|---|
| Services billed | 5,224 across 106 procedure codes |
| Paid by Medicare | $180,018 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,364 · 18,038 30-day fills |
|---|---|
| Patients | 545 |
| Total drug cost | $697,810 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliations
- Advocate Good Samaritan HospitalDowners Grove, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Other facilities
- Residential Home HealthHome health agency · Lisle, IL
- Uchicago Medicine Adventhealth Home CareHome health agency · La Grange, IL
Industry payments (Open Payments)
- 2025$26.54 · 1 payment from 1 company
- 2024$292.63 · 12 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $26.54 | 1 |
What the 2025 payments were for
- Food and Beverage$26.54 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 family medicine physicians in La Grange · All family medicine physicians in Illinois