Maurice Wendell Chung, M.D.
NPI 1124042015ActiveIndividual· Internal Medicine, Gastroenterology· Milwaukee, WI
Internal Medicine, Gastroenterology (M.D.) in Milwaukee, Wisconsin, trained at Medical College of Wisconsin (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $226,615 for 1,842 claims, against $30,856 paid for services in 2024. Gilead Sciences, Inc. was the largest of 2 companies reporting payments in 2025, $162.53 in all, mostly food and beverage.
Overview
| NPI | 1124042015 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Jun 12, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 26944 | WI |
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 - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 194 |
|---|---|
| Services billed | 304 across 29 procedure codes |
| Paid by Medicare | $30,856 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,842 · 2,816 30-day fills |
|---|---|
| Patients | 637 |
| Total drug cost | $226,615 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Gastroenterology |
Medical group
- Columbia St Marys Hospital Milwaukee IncMilwaukee, WI · 306 clinicians
Hospital affiliation
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI
Industry payments (Open Payments)
- 2025$162.53 · 8 payments from 2 companies
- 2024$170.64 · 8 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $139.89 | 7 |
| Boston Scientific Corporation | $22.64 | 1 |
What the 2025 payments were for
- Food and Beverage$162.53 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 104 gastroenterologists in Milwaukee · All gastroenterologists in Wisconsin