Dr Leslie S Zun, MD - Medicare Emergency Medicine in Chicago, IL

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Dr Leslie S Zun, MD is a medicare enrolled "Emergency Medicine" physician in Chicago, Illinois. His current practice location is 1501 S California Ave, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (773) 257-6843.

Dr Leslie S Zun is licensed to practice in Illinois (license number 036066812) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1376543421.

Contact Information

Dr Leslie S Zun, MD
1501 S California Ave,
Chicago, IL 60608-1732
(773) 257-6843
Not Available

Map and Direction




Physician's Profile

Full NameDr Leslie S Zun
GenderMale
SpecialityEmergency Medicine
Location1501 S California Ave, Chicago, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1376543421
  • Provider Enumeration Date: 07/29/2005
  • Last Update Date: 10/08/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 7012049174
  • Enrollment ID: I20100726000169

Medical Identifiers

Medical identifiers for Dr Leslie S Zun such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1376543421NPI-NPPES
036-066812-7MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036066812 (Illinois)Primary

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 Leslie S Zun allows following entities to bill medicare on his behalf.
Entity NameCounty Of Lake
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164446712
PECOS PAC ID: 7214838861
Enrollment ID: O20040116000192
Entity NameSwedish Covenant Management Services Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760432348
PECOS PAC ID: 4486556016
Enrollment ID: O20040123000850
Entity NameMount Sinai Community Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376715896
PECOS PAC ID: 5991600405
Enrollment ID: O20040202001032
Entity NameCepamerica Illinois Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912283110
PECOS PAC ID: 3274793633
Enrollment ID: O20120322000587

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 Leslie S Zun 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 Leslie S Zun, MD
3537 Paysphere Cir,
Chicago, IL 60674-0035

Ph: (708) 786-2900		Dr Leslie S Zun, MD
1501 S California Ave,
Chicago, IL 60608-1732

Ph: (773) 257-6843

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.

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).

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