Hazem Nassar, MD - Medicare Internal Medicine in Chicago, IL

Hazem Nassar, MD is a medicare enrolled "Internal Medicine" physician in Chicago, Illinois. He graduated from medical school in 2003 and has 21 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ohiohealth Corporation and his current practice location is 4600 N Clarendon Ave, Apt 1109, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (773) 293-7133.

Hazem Nassar is licensed to practice in Illinois (license number 125056257) 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 1740412246.

Contact Information

Hazem Nassar, MD
4600 N Clarendon Ave, Apt 1109,
Chicago, IL 60640-5710
(773) 293-7133
Not Available

Map and Direction




Physician's Profile

Full NameHazem Nassar
GenderMale
SpecialityInternal Medicine
Experience21 Years
Location4600 N Clarendon Ave, 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:
  • Hazem Nassar graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1740412246
  • Provider Enumeration Date: 08/17/2009
  • Last Update Date: 01/25/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7911153010
  • Enrollment ID: I20150806011502

Medical Identifiers

Medical identifiers for Hazem Nassar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1740412246NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 125056257 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Grant Medical CenterColumbus, OHHospital
Dublin Methodist HospitalDublin, OHHospital
Grady Memorial HospitalDelaware, OHHospital
Doctors HospitalColumbus, OHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ohiohealth Corporation63057584261940

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. Hazem Nassar allows following entities to bill medicare on his behalf.
Entity NameOhiohealth Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578545273
PECOS PAC ID: 6305758426
Enrollment ID: O20031105000532
Entity NameTheoria Medical
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609362375
PECOS PAC ID: 5395098339
Enrollment ID: O20200728002910

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. Hazem Nassar 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
Hazem Nassar, MD
4600 N Clarendon Ave, Apt 1109,
Chicago, IL 60640-5710

Ph: (773) 293-7133
Hazem Nassar, MD
4600 N Clarendon Ave, Apt 1109,
Chicago, IL 60640-5710

Ph: (773) 293-7133

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).

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.