Dr Eric D Leser, MD - Medicare Emergency Medicine in Chicago, IL

Dr Eric D Leser, MD is a medicare enrolled "Emergency Medicine" physician in Chicago, Illinois. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 2012 and has 12 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Cook County and his current practice location is 1900 W. Polk, Cook County Emergency Medicine Residency Program, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 864-0060.

Dr Eric D Leser is licensed to practice in Illinois (license number 036140428) 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 1689930968.

Contact Information

Dr Eric D Leser, MD
1900 W. Polk, Cook County Emergency Medicine Residency Program,
Chicago, IL 60612
(312) 864-0060
Not Available

Map and Direction




Physician's Profile

Full NameDr Eric D Leser
GenderMale
SpecialityEmergency Medicine
Experience12 Years
Location1900 W. Polk, Chicago, 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:
  • Dr Eric D Leser attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 2012
  NPI Data:
  • NPI Number: 1689930968
  • Provider Enumeration Date: 04/11/2012
  • Last Update Date: 05/23/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3173817475
  • Enrollment ID: I20160809003202

Medical Identifiers

Medical identifiers for Dr Eric D Leser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1689930968NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036140428 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John H Stroger Jr HospitalChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cook County2860398088645

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. Dr Eric D Leser allows following entities to bill medicare on his behalf.
Entity NameCook County
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588612832
PECOS PAC ID: 2860398088
Enrollment ID: O20031209000747
Entity NameEpmg Of Illinois Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528098902
PECOS PAC ID: 1254225345
Enrollment ID: O20040210000751
Entity NameCepamerica Illinois Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912283110
PECOS PAC ID: 3274793633
Enrollment ID: O20120322000587
Entity NameIllinois Emergency Medicine Specialists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003150962
PECOS PAC ID: 6103071808
Enrollment ID: O20130304000132
Entity NameAlteon Health Illinois Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962067165
PECOS PAC ID: 1456686278
Enrollment ID: O20190716000871

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. Dr Eric D Leser 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
Dr Eric D Leser, MD
3107 W Argyle St, Unit 1,
Chicago, IL 60625-4274

Ph: (719) 491-4562
Dr Eric D Leser, MD
1900 W. Polk, Cook County Emergency Medicine Residency Program,
Chicago, IL 60612

Ph: (312) 864-0060

Reviews and Comments


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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.

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