Lillienne Yoon Chan, MD
NPI 1679771117ActiveIndividual· Pediatrics, Pediatric Gastroenterology· Dallas, TX
Pediatrics, Pediatric Gastroenterology (MD) in Dallas, Texas, trained at University of Texas Medical Branch at Galveston (class of 2006). Medicare paid $78,424 for services to 13 patients in 2024. Ardelyx, Inc. was the largest of 8 companies reporting payments in 2025, $359.33 in all, mostly food and beverage.
Overview
| NPI | 1679771117 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 5, 2007 |
| Last updated in NPPES | Mar 15, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics, Pediatric Gastroenterology Primary | 2080P0206X | N3401 | TX |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Pediatric Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 5,215 across 12 procedure codes |
| Paid by Medicare | $78,424 |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Pediatric Medicine |
| Secondary specialties | Gastroenterology |
Medical group
- Texas Digestive Disease Consultants, PLLCFlower Mound, TX · 608 clinicians
Industry payments (Open Payments)
- 2025$359.33 · 16 payments from 8 companies
- 2024$255.36 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $160.93 | 6 |
| Janssen Biotech, Inc. | $67.60 | 3 |
| Genzyme Corporation | $38.59 | 2 |
| Abbvie Inc. | $21.38 | 1 |
| Celltrion USA Inc. | $20.48 | 1 |
What the 2025 payments were for
- Food and Beverage$359.33 · 16 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Pediatrics, Pediatric Gastroenterology providers in Dallas
- 1679700462
- 1487616348
- 1811191406
- 1457360422
- 1982666848
- 1407815228
- 1477765113
- 1487861944
- 1447468988
- 1528244597
- 1518420637
- 1730507328
All Pediatrics, Pediatric Gastroenterology providers in Texas →