Jack Leya, MD
Gastroenterology Physician · Maywood, IL
Jack Leya, MD is a gastroenterology physician with a practice address in Maywood, Illinois, and NPI 1336128602, issued on Jan 13, 2006. Check the license (Illinois 036066173, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jack Leya
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 036066173 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 S First Ave, Maywood, IL 60153
- Phone
- (708) 216-3307
- Enumerated
- Jan 13, 2006
- Record last updated
- Jul 9, 2026
- Fax
- (708) 216-4113
- Medicaid ID
- 36066173 IL
- Medicare enrollment
- Enrolled (PECOS I20050804000377); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 2160 S First Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Jack Leya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036066173Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
30 Medicare Part D claims for 26 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Sod Sulf-Potass Sulf-Mag Sulf13 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): 82.6 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: $42.79
1 payment: food and beverage; the largest payer was Medtronic, 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.
3 hospitals and group practices
- Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 of 5 stars
- Freeport Memorial HospitalFreeport, IL
- Freeport Regional Health Care FoundationFreeport, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Jack Leya among 887 gastroenterology physician records in Illinois
Jack Leya, MD is one of 887 gastroenterology physician records with a practice address in Illinois. 85% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1981 · median 2003 among the 643 with a school on file
- Record last updated2026 · 49% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 gastroenterology physician records list a practice address in Maywood
They are 41 of the 2,572 NPPES records with a practice address in Maywood, and 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Maywood → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Elora Arya, M.D.Maywood, IL 601531881894475
- Agata Bednarz, M.D.Maywood, IL 601531477671527
- Charles Broy, M.D.Maywood, IL 601531952449340
- Suzanne Daly, M.D.Maywood, IL 601531780770446
- Lesley Dawravoo, M.D.Maywood, IL 601531588820781
- Michael Klamut, MDMaywood, IL 601531700865086
- Samuel Leon, MDMaywood, IL 601531326010067
- Sohrab Mobarhan, MDMaywood, IL 601531801875182
Common questions
What is Jack Leya, MD's NPI number?
Jack Leya, MD's National Provider Identifier (NPI) is 1336128602, issued on Jan 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jack Leya, MD located?
The NPPES record lists a practice address at 2160 S First Ave, Maywood, IL, 60153. Phone: (708) 216-3307. Providers update this record themselves, so call before visiting.
How can I verify Jack Leya, MD's license?
NPPES lists Illinois license number 036066173, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jack Leya, MD prescribe under Medicare Part D?
In 2024, Jack Leya, MD had 30 Medicare Part D claims for 26 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Jack Leya, MD's MIPS final score?
The 2023 MIPS final score is 82.6 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.