David Chen-Yin Yang, M.D.
NPI 1588710933ActiveIndividual· Internal Medicine, Interventional Cardiology· Naperville, IL
Internal Medicine, Interventional Cardiology (M.D.) in Naperville, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $1,365,744 for 6,577 claims, against $327,439 paid for services in 2024. Gilead Sciences, Inc. was the largest of 13 companies reporting payments in 2025, $879.18 in all, mostly food and beverage.
Overview
| NPI | 1588710933 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 26, 2007 |
| Last updated in NPPES | Sep 19, 2026 |
| Certified by provider | Sep 19, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Interventional Cardiology Primary | 207RI0011X | 036155565 | IL |
| Internal Medicine | 207R00000X | A130909 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | 036155565 | 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 - Interventional Cardiology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,357 |
|---|---|
| Services billed | 4,422 across 87 procedure codes |
| Paid by Medicare | $327,439 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,577 · 17,842 30-day fills |
|---|---|
| Patients | 932 |
| Total drug cost | $1,365,744 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Interventional Cardiology |
| Telehealth | Offers telehealth |
Medical groups
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
- Edward HospitalBolingbrook, IL · 96 clinicians
- Elmhurst Memorial HospitalElmhurst, IL · 81 clinicians
- Naperville Psychiatric VenturesNaperville, IL · 17 clinicians
Hospital affiliations
- Edward HospitalNaperville, IL
- Elmhurst Memorial HospitalElmhurst, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$879.18 · 38 payments from 13 companies
- 2024$1,217 · 54 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $125.00 | 1 |
| Novartis Pharmaceuticals Corporation | $102.93 | 4 |
| E.R. Squibb & Sons, L.L.C. | $98.22 | 6 |
| Amgen Inc. | $94.73 | 6 |
| Pfizer Inc. | $79.47 | 3 |
What the 2025 payments were for
- Food and Beverage$879.18 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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