Dr Michael J Unger, MD - Medicare Internal Medicine in Buffalo Grove, IL

Dr Michael J Unger, MD is a medicare enrolled "Internal Medicine" physician in Buffalo Grove, Illinois. He went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 1992 and has 32 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Advocate Health And Hospitals Corporation and his current practice location is 650 W Lake Cook Rd, Buffalo Grove, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 459-1160.

Dr Michael J Unger is licensed to practice in Illinois (license number 036093043) 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 1518945484.

Contact Information

Dr Michael J Unger, MD
650 W Lake Cook Rd,
Buffalo Grove, IL 60089-2082
(847) 459-1160
(847) 459-8692

Map and Direction




Physician's Profile

Full NameDr Michael J Unger
GenderMale
SpecialityInternal Medicine
Experience32 Years
Location650 W Lake Cook Rd, Buffalo Grove, 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 J Unger attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1992
  NPI Data:
  • NPI Number: 1518945484
  • Provider Enumeration Date: 01/02/2006
  • Last Update Date: 04/10/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3779519988
  • Enrollment ID: I20050711000421

Medical Identifiers

Medical identifiers for Dr Michael J Unger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518945484NPI-NPPES
1518945484OtherILNPI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036093043 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northshore University Healthsystem - Evanston HospitalEvanston, ILHospital
Advocate Lutheran General HospitalPark ridge, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Advocate Health And Hospitals Corporation78108009352422

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 J Unger 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
Entity NameAllied Health Care Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043446719
PECOS PAC ID: 3678619400
Enrollment ID: O20091008000618

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 J Unger 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 J Unger, MD
29373 Network Pl,
Chicago, IL 60673-1293

Ph: (847) 390-5900
Dr Michael J Unger, MD
650 W Lake Cook Rd,
Buffalo Grove, IL 60089-2082

Ph: (847) 459-1160

Reviews and Comments


Internal Medicine Doctors in Buffalo Grove, IL

Mr. Mark J Charman, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 600 W Lake Cook Rd, Buffalo Grove, IL 60089
Phone: 847-632-1880    Fax: 847-520-6095
Olga Zarkh, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 135 N Arlington Heights Rd Ste 160, Buffalo Grove, IL 60089
Phone: 847-818-7700    Fax: 847-818-1718
Dr. Gregory O'neal Clark, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 355 W Dundee Rd Ste 110, Buffalo Grove, IL 60089
Phone: 847-541-4878    Fax: 847-520-0500
Dr. Sarah Cathleen Peterson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0326    Fax: 847-618-0762
Dr. Chuck Richard Vrasich, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766
Dr. Susan E Nelson, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766
Dr. Irina Goldvekht, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15 S Mchenry Rd, Buffalo Grove, IL 60089
Phone: 847-618-0351    Fax: 847-618-0766

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.