NPPES file of Aug 9, 2026

Lillienne Yoon Chan, MD

Pediatric Gastroenterology Physician · Dallas, TX

Lillienne Yoon Chan, MD is a pediatric gastroenterology physician with a practice address in Dallas, Texas, and NPI 1679771117, issued on Jul 5, 2007. Check the license (Texas N3401, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1679771117
Name
Lillienne Yoon Chan
Credential
MD
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License number
N3401 TX
Self-reported in NPPES; status is on the state search
Practice location
7777 Forest LN Ste B304, Dallas, TX 75230
Phone
(972) 566-8844
Enumerated
Jul 5, 2007
Record last updated
Mar 15, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20121024000526); accepts Medicare assignment
Medical or professional school
University Of Texas Medical Branch At Galveston, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Lillienne Yoon Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N3401
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 79.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score68.6
  2. Costout of 100 · 30%64.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $255.36

12 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 1,184 providers of this specialty with any payment received $2,585.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lillienne Chan$255.36
  2. Specialty average$2,585.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Texas Digestive Disease Consultants, PLLCRockwall, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lillienne Yoon Chan among 190 pediatric gastroenterology physician records in Texas

Lillienne Yoon Chan, MD is one of 190 pediatric gastroenterology physician records with a practice address in Texas. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 32% of them.

  • NPI issued2007 · 32% of these records are older, 54% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 36% of these records are
  • Graduated2006 · median 2004 among the 68 with a school on file
  • Record last updated2016 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0206X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Gastroenterology Physician providers in Texas

There are 190 pediatric gastroenterology physician records in Texas.

The 8 pediatric gastroenterology physician records with the nearest ZIP codes

  1. Kendall Brown, M.D.Dallas, TX 752301407815228
  2. Annette Whitney, M.D.Dallas, TX 752301851351555
  3. Nandini Channabasappa, MDDallas, TX 752351477765113
  4. Swetha Kotamraju, MDDallas, TX 752351518420637
  5. Lauren Lazar, MDDallas, TX 752351730507328
  6. Derek Ngai, MDDallas, TX 752351700231859
  7. Ashley Polachek, MDDallas, TX 752351275191546
  8. Alexandra Pottorff, MD, MPHDallas, TX 752351578190633

Common questions

What is Lillienne Yoon Chan, MD's NPI number?

Lillienne Yoon Chan, MD's National Provider Identifier (NPI) is 1679771117, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Lillienne Yoon Chan, MD located?

The NPPES record lists a practice address at 7777 Forest LN Ste B304, Dallas, TX, 75230. Phone: (972) 566-8844. Providers update this record themselves, so call before visiting.

How can I verify Lillienne Yoon Chan, MD's license?

NPPES lists Texas license number N3401, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Lillienne Yoon Chan, MD's MIPS final score?

The 2023 MIPS final score is 79.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.