Gregory M. Lewis, M.D.
NPI 1104864321ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Hinsdale, IL
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Hinsdale, Illinois, trained at Vanderbilt University School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $1,532,244 for 7,749 claims, against $207,009 paid for services in 2024. Cvrx, Inc. reported $25.77 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1104864321 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 2, 2006 |
| Last updated in NPPES | Mar 22, 2021 |
| Certified by provider | Mar 22, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | 036075101 | IL |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 036-075101 | 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 - Cardiac Electrophysiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,720 |
|---|---|
| Services billed | 4,689 across 62 procedure codes |
| Paid by Medicare | $207,009 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,749 · 21,185 30-day fills |
|---|---|
| Patients | 1,026 |
| Total drug cost | $1,532,244 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- Adventist Health Partners IncHinsdale, IL · 43 clinicians
Hospital affiliations
- Uchicago Medicine Adventhealth BolingbrookBolingbrook, IL
- Uchicago Medicine Adventhealth GlenoaksGlendale Heights, IL
- Uchicago Medicine Adventhealth HinsdaleHinsdale, IL
- Uchicago Medicine Adventhealth la GrangeLa Grange, IL
Industry payments (Open Payments)
- 2025$25.77 · 1 payment from 1 company
- 2024$34.92 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cvrx, Inc. | $25.77 | 1 |
What the 2025 payments were for
- Food and Beverage$25.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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