Linda S. Chan, M.D.
NPI 1235187253ActiveIndividual· Internal Medicine, Pulmonary Disease· Winfield, IL
Internal Medicine, Pulmonary Disease (M.D.) in Winfield, Illinois, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $489,584 for 1,118 claims, against $134,574 paid for services in 2024. Boehringer Ingelheim Pharmaceuticals, Inc. reported $114.64 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1235187253 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 4, 2006 |
| Last updated in NPPES | Oct 15, 2026 |
| Certified by provider | Oct 15, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 036098848 | IL |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 036098848 | IL |
| Internal Medicine | 207R00000X | 036098848 | 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 - Pulmonary Disease (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 706 |
|---|---|
| Services billed | 2,138 across 34 procedure codes |
| Paid by Medicare | $134,574 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,118 · 1,891 30-day fills |
|---|---|
| Patients | 263 |
| Total drug cost | $489,584 |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- Central Dupage Physician GroupGeneva, IL · 1,080 clinicians
Hospital affiliations
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Medicine Kishwaukee HospitalDekalb, IL
- Northwestern Medicine McHenryMcHenry, IL
- Northwestern Memorial HospitalChicago, IL
Other facilities
- Marianjoy Rehabilitation CenterInpatient rehabilitation facility · Wheaton, IL
Industry payments (Open Payments)
- 2025$114.64 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, Inc. | $114.64 | 1 |
What the 2025 payments were for
- Food and Beverage$114.64 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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