Dr Michael Joseph Breen, MD, PHD - Medicare Internal Medicine in Libertyville, IL

Dr Michael Joseph Breen, MD, PHD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Libertyville, Illinois. His current practice location is 1800 Hollister Dr Ste 112, Libertyville, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 367-6781.

Dr Michael Joseph Breen is licensed to practice in Illinois (license number 036149848) 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 1669861449.

Contact Information

Dr Michael Joseph Breen, MD, PHD
1800 Hollister Dr Ste 112,
Libertyville, IL 60048-5265
(847) 367-6781
Not Available

Map and Direction




Physician's Profile

Full NameDr Michael Joseph Breen
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location1800 Hollister Dr Ste 112, Libertyville, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1669861449
  • Provider Enumeration Date: 01/15/2015
  • Last Update Date: 10/13/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2163716887
  • Enrollment ID: I20220909000767

Medical Identifiers

Medical identifiers for Dr Michael Joseph Breen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1669861449NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 036149848 (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 Michael Joseph Breen allows following entities to bill medicare on his behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064

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 Joseph Breen 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 Joseph Breen, MD, PHD
29373 Network Pl,
Chicago, IL 60673-1293

Ph: (847) 390-5900
Dr Michael Joseph Breen, MD, PHD
1800 Hollister Dr Ste 112,
Libertyville, IL 60048-5265

Ph: (847) 367-6781

Reviews and Comments


Internal Medicine Doctors in Libertyville, IL

Omar Salman, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 1800 Hollister Dr Ste 112, Libertyville, IL 60048
Phone: 847-367-6781    
Dr. George R Hvostik, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 1860 W Winchester Rd Ste 107b, Libertyville, IL 60048
Phone: 847-996-0836    Fax: 847-996-6278
Kalpana Puppala Bicknell, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 801 S. Milwaukee Ave., Advocate Condell Medical Center, Libertyville, IL 60048
Phone: 847-990-5260    Fax: 847-362-8031
Dr. Rani Sharma, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 131 E Park Ave, Suite # 103, Libertyville, IL 60048
Phone: 847-968-2800    Fax: 847-968-2801
Dr. Ahmad Mohamed Hassan, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 825 S Milwaukee Ave, Libertyville, IL 60048
Phone: 847-573-2845    
Kenneth R Margules, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 755 S Milwaukee Ave, Suite 250, Libertyville, IL 60048
Phone: 847-367-0072    Fax: 847-367-0876
Dr. Robert B Johnson, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 755 S. Milwaukee Avenue, Suite 263, Libertyville, IL 60048
Phone: 847-918-1500    Fax: 847-918-1500

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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