Jack Leya, MD - Medicare Gastroenterology in Maywood, IL

Jack Leya, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Maywood, Illinois. He graduated from medical school in 1981 and has 43 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Loyola University Medical Center and his current practice location is 2160 S First Ave, (fahey Bldg., Rm. 007), Maywood, Illinois. You can reach out to his office (for appointments etc.) via phone at (708) 216-3307.

Jack Leya is licensed to practice in Illinois (license number 36066173) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1336128602.

Contact Information

Jack Leya, MD
2160 S First Ave, (fahey Bldg., Rm. 007),
Maywood, IL 60153
(708) 216-3307
(708) 216-4113

Map and Direction




Physician's Profile

Full NameJack Leya
GenderMale
SpecialityGastroenterology
Experience43 Years
Location2160 S First Ave, Maywood, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Jack Leya graduated from medical school in 1981
  NPI Data:
  • NPI Number: 1336128602
  • Provider Enumeration Date: 01/13/2006
  • Last Update Date: 10/10/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3870522493
  • Enrollment ID: I20050804000377

Medical Identifiers

Medical identifiers for Jack Leya such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336128602NPI-NPPES
36066173MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 36066173 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Loyola University Medical CenterMaywood, ILHospital
Fhn Memorial HospitalFreeport, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Loyola University Medical Center3779488903857

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Jack Leya allows following entities to bill medicare on his behalf.
Entity NameFreeport Regional Health Care Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457337016
PECOS PAC ID: 9234041682
Enrollment ID: O20031104000182
Entity NameLoyola University Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336159961
PECOS PAC ID: 3779488903
Enrollment ID: O20031202000027
Entity NameFreeport Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447228788
PECOS PAC ID: 8426958232
Enrollment ID: O20040109000305

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Jack Leya is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Jack Leya, MD
2160 S First Ave, (fahey Bldg., Rm. 007),
Maywood, IL 60153

Ph: (708) 216-3307
Jack Leya, MD
2160 S First Ave, (fahey Bldg., Rm. 007),
Maywood, IL 60153

Ph: (708) 216-3307

Reviews and Comments


Internal Medicine Doctors in Maywood, IL

Dr. Cathryn T Sawalski, DO, MBA
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 888-584-7888    
Maryam Sabir, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 888-584-7888    
Holly Kramer, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2160 S First Ave, 101-1740 Loyola University Medical Center, Maywood, IL 60153
Phone: 708-216-9000    Fax: 708-216-9033
Dr. Stephanie Bochen Tsai, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 708-216-9000    
Nicholas Poellinger, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 888-584-7888    
Marisa Luck,
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 888-584-7888    
Sofia Ahmed, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 2160 S 1st Ave, Maywood, IL 60153
Phone: 708-216-8757    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.