Wankin J. Yu, MD
NPI 1477639656ActiveIndividual· Internal Medicine, Gastroenterology· Leominster, MA
Internal Medicine, Gastroenterology (MD) with North Worcester Gastroenterology, P.C., practicing in Leominster, Massachusetts. Part D covered 314 prescriptions written in 2024, 86% of them generic. Gilead Sciences, Inc. was the largest of 11 companies reporting payments in 2025, $1,233 in all, mostly food and beverage.
Overview
| NPI | 1477639656 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 31, 2006 |
| Last updated in NPPES | Jan 21, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 059212 | MA |
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 (MA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 314 · 793 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $250,178 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- North Worcester Gastroenterology, P.C.Leominster, MA · 4 clinicians
Industry payments (Open Payments)
- 2025$1,233 · 39 payments from 11 companies
- 2024$1,989 · 68 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $380.88 | 10 |
| Abbvie Inc. | $334.37 | 10 |
| Janssen Biotech, Inc. | $145.62 | 6 |
| Qol Medical, LLC | $83.54 | 2 |
| Takeda Pharmaceuticals U.S.A., Inc. | $67.65 | 2 |
What the 2025 payments were for
- Food and Beverage$1,233 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 gastroenterologists in Leominster · All gastroenterologists in Massachusetts