Dr Mark Christopher Gillis, MD - Medicare Family Practice in Itasca, IL

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Dr Mark Christopher Gillis, MD is a medicare enrolled "Family Medicine" physician in Itasca, Illinois. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Dupage Medical Group Ltd and his current practice location is 1300 N Arlington Heights Rd Ste 130, Itasca, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 871-4540.

Dr Mark Christopher Gillis is licensed to practice in Illinois (license number 036078671) 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 1992806509.

Contact Information

Dr Mark Christopher Gillis, MD
1300 N Arlington Heights Rd Ste 130,
Itasca, IL 60143-3128
(847) 871-4540
(847) 871-4597

Map and Direction




Physician's Profile

Full NameDr Mark Christopher Gillis
GenderMale
SpecialityFamily Practice
Experience38 Years
Location1300 N Arlington Heights Rd Ste 130, Itasca, 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 Mark Christopher Gillis attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1992806509
  • Provider Enumeration Date: 09/26/2006
  • Last Update Date: 08/31/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7315938917
  • Enrollment ID: I20061129000491

Medical Identifiers

Medical identifiers for Dr Mark Christopher Gillis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1992806509NPI-NPPES
036078671MedicaidIL
399980OtherMEDICARE GROUP PTAN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 036078671 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Alexian Brothers Home HealthHanover park, ILHome health agency
Alexian Brothers Medical Center 1Elk grove village, ILHospital
Northwest Community Hospital 1Arlington heights, ILHospital
St Alexius Medical CenterHoffman estates, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dupage Medical Group Ltd54966679411186

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 Mark Christopher Gillis allows following entities to bill medicare on his behalf.
Entity NameDupage Medical Group Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801833983
PECOS PAC ID: 5496667941
Enrollment ID: O20031110000535
Entity NameCentral Dupage Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033149844
PECOS PAC ID: 5890696231
Enrollment ID: O20040303000601

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 Mark Christopher Gillis 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 Mark Christopher Gillis, MD
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 469-9200		Dr Mark Christopher Gillis, MD
1300 N Arlington Heights Rd Ste 130,
Itasca, IL 60143-3128

Ph: (847) 871-4540

Reviews and Comments


Family Medicine Doctors in Itasca, IL

Roy S Scheck, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 115 West Orchard St, Itasca, IL 60143
Phone: 630-773-0333    Fax: 630-773-4452

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.