An-Yu Chen, M.D.
Gastroenterology Physician · Lexington, KY
An-Yu Chen, M.D. is a gastroenterology physician with a practice address in Lexington, Kentucky, and NPI 1992731269, issued on Jun 25, 2006. Check the license (Kentucky 36512, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- An-Yu Chen
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 36512 KY
Self-reported in NPPES; status is on the state search - Practice location
- 1221 S Broadway, Lexington, KY 40504
- Phone
- (859) 258-4950
- Enumerated
- Jun 25, 2006
- Record last updated
- Jun 12, 2026
- Fax
- (859) 258-4618
- Medicaid ID
- 64033384 KY
- Medicare enrollment
- Enrolled (PECOS I20051128000321); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 226 in Kentucky → Look up another NPI →
Also registered at 1221 S Broadway
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Malinda Abbott, PAPhysician Assistant1467470203
- Michelle Adams, PAMedical Physician Assistant1578586863
- Jessica Adkins, MDEmergency Medicine Physician1639708712
- Sanjay Agarwala, MDDiagnostic Radiology Physician1932179041
- Muhammad Ahmed, MDEmergency Medicine Physician1912053042
Verify An-Yu Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 36512Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average gastroenterology physician in 2024
1,596 Medicare Part D claims for 890 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Gavilyte-G430 claims
- Peg-3350 And Electrolytes130 claims
- Sod Sulf-Potass Sulf-Mag Sulf110 claims
- Omeprazole96 claims
- Colestipol Hcl70 claims
- Rabeprazole Sodium50 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $5,309.97
181 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- New Lexington Clinic PscLexington, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
An-Yu Chen among 226 gastroenterology physician records in Kentucky
An-Yu Chen, M.D. is one of 226 gastroenterology physician records with a practice address in Kentucky. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 18% of them.
- NPI issued2006 · 18% of these records are older, 47% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1985 · median 2000 among the 181 with a school on file
- Record last updated2026 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Kentucky
There are 226 gastroenterology physician records in Kentucky.
All 226 in Kentucky → Every provider in Lexington → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Matthew Ashmun, M.D.Lexington, KY 405041912948225
- Bilal Aslam, MDLexington, KY 405041790193100
- Brian Berk, M.D.Lexington, KY 405041952324600
- James Hunter, M.D.Lexington, KY 405041982620241
- David Johnston, M.D.Lexington, KY 405041093731846
- Samuel Mardini, MDLexington, KY 405041780622761
- Kathleen Martin, MDLexington, KY 405041437243268
- Scott Merkley, MDLexington, KY 405041629270814
Common questions
What is An-Yu Chen, M.D.'s NPI number?
An-Yu Chen, M.D.'s National Provider Identifier (NPI) is 1992731269, issued on Jun 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is An-Yu Chen, M.D. located?
The NPPES record lists a practice address at 1221 S Broadway, Lexington, KY, 40504. Phone: (859) 258-4950. Providers update this record themselves, so call before visiting.
How can I verify An-Yu Chen, M.D.'s license?
NPPES lists Kentucky license number 36512, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does An-Yu Chen, M.D. prescribe under Medicare Part D?
In 2024, An-Yu Chen, M.D. had 1,596 Medicare Part D claims for 890 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is An-Yu Chen, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.3 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.