Andy S. Yu, M.D.
NPI 1427136266ActiveIndividual· Specialist· San Jose, CA
Specialist (M.D.) in San Jose, California, trained at University of Chicago, Pritzker School of Medicine (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $309,211 for 931 claims, against $72,415 paid for services in 2024. Gilead Sciences, Inc. was the largest of 3 companies reporting payments in 2025, $582.72 in all, mostly food and beverage.
Overview
| NPI | 1427136266 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 1, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G79122 | CA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 261 |
|---|---|
| Services billed | 713 across 15 procedure codes |
| Paid by Medicare | $72,415 |
Part D prescriptions in 2024
| Prescriptions (claims) | 931 · 1,416 30-day fills |
|---|---|
| Patients | 318 |
| Total drug cost | $309,211 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 1992 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Gastroenterology |
| Telehealth | Offers telehealth |
Hospital affiliations
- El Camino HealthMountain View, CA
- Good Samaritan HospitalSan Jose, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$582.72 · 40 payments from 3 companies
- 2024$4,382 · 45 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $332.73 | 38 |
| Takeda Pharmaceuticals U.S.A., Inc. | $125.00 | 1 |
| Madrigal Pharmaceuticals | $124.99 | 1 |
What the 2025 payments were for
- Food and Beverage$582.72 · 40 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 190 Specialist providers in San Jose · All Specialist providers in California