Daniel Marks, M.D.
NPI 1457794406ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Joliet, IL
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) with Rush University Medical Group, practicing in Joliet, Illinois. In 2024 Medicare paid $255,303 for 1,057 patients, and Part D covered 1,080 of their prescriptions, 72% of them generic. Boston Scientific Corporation was the largest of 11 companies reporting payments in 2025, $13,552 in all, mostly food and beverage. Lists Rush Oak Park Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1457794406 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 9, 2013 |
| Last updated in NPPES | Aug 20, 2021 |
| Certified by provider | Aug 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | 036-149816 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 1,057 |
|---|---|
| Services billed | 3,506 across 74 procedure codes |
| Paid by Medicare | $255,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,080 · 2,352 30-day fills |
|---|---|
| Patients | 302 |
| Total drug cost | $329,289 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- Rush University Medical GroupChicago, IL · 1,551 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Rush University Medical CenterChicago, IL
- Saint Francis Hospital-EvanstonEvanston, IL
Industry payments (Open Payments)
- 2025$13,552 · 95 payments from 11 companies
- 2024$17,875 · 116 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $7,411 | 35 |
| Medtronic, Inc. | $3,261 | 26 |
| Abbott Laboratories | $1,837 | 20 |
| Biosense Webster, Inc. | $462.65 | 5 |
| Biotronik Inc. | $249.86 | 2 |
What the 2025 payments were for
- Food and Beverage$6,559 · 72 payments
- Travel and Lodging$3,869 · 21 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,125 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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