Yenchih George Lin, MD
NPI 1891884011ActiveIndividual· Internal Medicine· Chino, CA
Internal Medicine (MD) in Chino, California, trained at University of Minnesota Medical School (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $720,291 for 8,243 claims, against $62,107 paid for services in 2024. Eisai Inc. was the largest of 12 companies reporting payments in 2025, $1,624 in all, mostly food and beverage.
Overview
| NPI | 1891884011 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 12, 2006 |
| Last updated in NPPES | Oct 26, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A61257 | CA |
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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 150 |
|---|---|
| Services billed | 696 across 11 procedure codes |
| Paid by Medicare | $62,107 |
Part D prescriptions in 2024
| Prescriptions (claims) | 8,243 · 15,120 30-day fills |
|---|---|
| Patients | 432 |
| Total drug cost | $720,291 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Internal Medicine |
Other facilities
- Bright Light Home HealthHome health agency · Rancho Cucamonga, CA
Industry payments (Open Payments)
- 2025$1,624 · 27 payments from 12 companies
- 2024$2,085 · 33 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eisai Inc. | $250.00 | 2 |
| Astrazeneca Pharmaceuticals LP | $241.06 | 9 |
| Bayer Healthcare Pharmaceuticals Inc. | $161.07 | 2 |
| Glaxosmithkline, LLC. | $143.75 | 2 |
| Otsuka America Pharmaceutical, Inc. | $125.00 | 1 |
What the 2025 payments were for
- Food and Beverage$1,624 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Chino
- 1952538852
- 1477694156
- 1487477600
- 1073169298
- 1770326738
- 1053350884
- 1831700970
- 1063591667
- 1881900116
- 1861324931
- 1497199772
- 1801157896