William Cheung, MD
NPI 1255775797ActiveIndividual· Internal Medicine, Nephrology· Gurnee, IL
Internal Medicine, Nephrology (MD) in Gurnee, Illinois, trained at Rush Medical College of Rush University (class of 2013). In 2024 Medicare paid $145,097 for 388 patients, and Part D covered 488 of their prescriptions, 71% of them generic. Travere Therapeutics, Inc. was the largest of 8 companies reporting payments in 2025, $512.84 in all, mostly food and beverage.
Overview
| NPI | 1255775797 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 27, 2013 |
| Last updated in NPPES | Jul 27, 2025 |
| Certified by provider | Jul 27, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036156371 | IL |
| Internal Medicine | 207R00000X | 63344 | WI |
| Internal Medicine | 207R00000X | MD202308 | OR |
| Internal Medicine, Nephrology | 207RN0300X | 15958 | ND |
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 - Internal Medicine (IL); Practitioner - Nephrology (IL); Practitioner - Internal Medicine (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 388 |
|---|---|
| Services billed | 1,510 across 18 procedure codes |
| Paid by Medicare | $145,097 |
Part D prescriptions in 2024
| Prescriptions (claims) | 488 · 1,181 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $184,690 |
| Generic share | 71% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Nephrology Associates of Northern Illinois LtdAlgonquin, IL · 117 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Midwestern Region Med Center, IncZion, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine McHenryMcHenry, IL
- Vista Medical Center EastWaukegan, IL
Other facilities
- Fmc - Neomedica - Round LakeDialysis facility · Round Lake, IL
Industry payments (Open Payments)
- 2025$512.84 · 14 payments from 8 companies
- 2024$447.57 · 9 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $128.38 | 1 |
| Novo Nordisk Inc | $109.96 | 1 |
| Sumitomo Pharma America, Inc. | $84.54 | 4 |
| Amgen Inc. | $78.71 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $38.34 | 2 |
What the 2025 payments were for
- Food and Beverage$512.84 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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