Tien-Chun Chen, MD
NPI 1396005450ActiveIndividual· Internal Medicine, Gastroenterology· Temple City, CA
Internal Medicine, Gastroenterology (MD) in Temple City, California, trained at University of Texas Southwestern Medical School at Dallas (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $214,123 for 941 claims, against $117,383 paid for services in 2024. Abbvie Inc. was the largest of 11 companies reporting payments in 2025, $1,431 in all, mostly food and beverage.
Overview
| NPI | 1396005450 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 23, 2012 |
| Last updated in NPPES | Nov 23, 2023 |
| Certified by provider | Nov 23, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A154605 | CA |
| Internal Medicine, Hepatology | 207RI0008X | A154605 | 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 | 577 |
|---|---|
| Services billed | 1,149 across 44 procedure codes |
| Paid by Medicare | $117,383 |
Part D prescriptions in 2024
| Prescriptions (claims) | 941 · 1,488 30-day fills |
|---|---|
| Patients | 484 |
| Total drug cost | $214,123 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Genesis Healthcare Partners PCSan Francisco, CA · 228 clinicians
Hospital affiliation
- Usc Arcadia HospitalArcadia, CA
Industry payments (Open Payments)
- 2025$1,431 · 79 payments from 11 companies
- 2024$1,331 · 73 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $562.59 | 36 |
| Janssen Biotech, Inc. | $271.10 | 15 |
| Phathom Pharmaceuticals, Inc. | $125.33 | 6 |
| Gilead Sciences, Inc. | $116.47 | 5 |
| Madrigal Pharmaceuticals | $99.77 | 5 |
What the 2025 payments were for
- Food and Beverage$1,347 · 78 payments
- Education$84.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Temple City
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