Dr Michael James Brennan, DO, MPH - Medicare Emergency Medicine in Chicago, IL

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Dr Michael James Brennan, DO, MPH is a medicare enrolled "Emergency Medicine" physician in Chicago, Illinois. He went to Lake Erie Col Of Osteopathic Medicine, Bradenton and graduated in 2019 and has 5 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Sartori Memorial Hospital Inc, St Anthony Emergency Services Physician Group, Riverside Emergency Physicians Llc, Rush Oak Park Er Physicians Group and his current practice location is 1620 W Harrison St, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 942-5000.

Dr Michael James Brennan is licensed to practice in Illinois (license number 036.164300) 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 1811550981.

Contact Information

Dr Michael James Brennan, DO, MPH
1620 W Harrison St,
Chicago, IL 60612-3801
(312) 942-5000
Not Available

Map and Direction




Physician's Profile

Full NameDr Michael James Brennan
GenderMale
SpecialityEmergency Medicine
Experience5 Years
Location1620 W Harrison St, 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 Michael James Brennan attended and graduated from Lake Erie Col Of Osteopathic Medicine, Bradenton in 2019
  NPI Data:
  • NPI Number: 1811550981
  • Provider Enumeration Date: 04/15/2019
  • Last Update Date: 12/05/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4587998208
  • Enrollment ID: I20220615000246

Medical Identifiers

Medical identifiers for Dr Michael James Brennan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811550981NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 5151013942 (Michigan)Secondary
207P00000XEmergency Medicine 5101025918 (Michigan)Secondary
207RC0200XInternal Medicine - Critical Care Medicine 036.164300 (Illinois)Secondary
207P00000XEmergency Medicine 036.164300 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Winneshiek Medical CenterDecorah, IAHospital
Rush Oak Park HospitalOak park, ILHospital
Saint Anthony HospitalChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sartori Memorial Hospital Inc105222954911
St Anthony Emergency Services Physician Group569874407613
Riverside Emergency Physicians Llc620429411925
Rush Oak Park Er Physicians Group882019060633

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 Michael James Brennan allows following entities to bill medicare on his behalf.
Entity NameSartori Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1710928734
PECOS PAC ID: 1052229549
Enrollment ID: O20031111000280

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 Michael James Brennan 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 Michael James Brennan, DO, MPH
1620 W Harrison St,
Chicago, IL 60612-3801

Ph: (312) 942-5000		Dr Michael James Brennan, DO, MPH
1620 W Harrison St,
Chicago, IL 60612-3801

Ph: (312) 942-5000

Reviews and Comments


Emergency Medicine Doctors in Chicago, IL

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Phone: 773-967-2000    

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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