Eric Chun-Ching Chu
NPI 1790879351ActiveIndividual· Internal Medicine, Gastroenterology· Long Beach, CA
Internal Medicine, Gastroenterology in Long Beach, California, trained at University of California, Geffen School of Medicine (class of 1997). Their prescriptions cost Medicare Part D more than their services did: $118,487 for 635 claims, against $65,288 paid for services in 2024. Abbvie Inc. was the largest of 15 companies reporting payments in 2025, $3,226 in all, mostly food and beverage.
Overview
| NPI | 1790879351 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Oct 3, 2006 |
| Last updated in NPPES | Mar 31, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A72184 | 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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 277 |
|---|---|
| Services billed | 563 across 24 procedure codes |
| Paid by Medicare | $65,288 |
Part D prescriptions in 2024
| Prescriptions (claims) | 635 · 1,170 30-day fills |
|---|---|
| Patients | 352 |
| Total drug cost | $118,487 |
| Generic share | 69% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliations
- Providence Mission HospitalMission Viejo, CA
- Providence St. Jude Medical CenterFullerton, CA
Industry payments (Open Payments)
- 2025$3,226 · 142 payments from 15 companies
- 2024$3,456 · 152 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $1,035 | 50 |
| Janssen Biotech, Inc. | $392.72 | 16 |
| Pfizer Inc. | $355.65 | 13 |
| Genzyme Corporation | $265.40 | 9 |
| Takeda Pharmaceuticals U.S.A., Inc. | $264.48 | 18 |
What the 2025 payments were for
- Food and Beverage$3,226 · 142 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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