Fang Frank Yu
NPI 1497869630ActiveIndividual· Internal Medicine, Gastroenterology· Irvine, CA
Internal Medicine, Gastroenterology in Irvine, California, licensed in CA, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $180,063 for 1,997 claims, against $104,655 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 9 companies reporting payments in 2025, $611.80 in all, mostly food and beverage. Lists Hoag Memorial Hospital Presbyterian as a hospital affiliation.
Overview
| NPI | 1497869630 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 17, 2006 |
| Last updated in NPPES | Jan 28, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A66256 | CA |
| Internal Medicine | 207R00000X | A66256 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 477 |
|---|---|
| Services billed | 1,087 across 17 procedure codes |
| Paid by Medicare | $104,655 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,997 · 3,655 30-day fills |
|---|---|
| Patients | 1,053 |
| Total drug cost | $180,063 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1982 |
|---|---|
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$611.80 · 23 payments from 9 companies
- 2024$709.33 · 23 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Madrigal Pharmaceuticals | $264.23 | 6 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $70.36 | 4 |
| Ardelyx, Inc. | $65.68 | 3 |
| Qol Medical, LLC | $54.59 | 2 |
| Boston Scientific Corporation | $50.35 | 2 |
What the 2025 payments were for
- Food and Beverage$611.80 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 30 gastroenterologists in Irvine · All gastroenterologists in California