Marek J Grzeskowiak, MD - Medicare Family Medicine in Glenview, IL

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Marek J Grzeskowiak, MD is a medicare enrolled "Family Medicine - Hospice And Palliative Medicine" physician in Glenview, Illinois. His current practice location is 2050 Claire Ct, Glenview, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 556-1707.

Marek J Grzeskowiak is licensed to practice in Illinois (license number 036126699) 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 1821259003.

Contact Information

Marek J Grzeskowiak, MD
2050 Claire Ct,
Glenview, IL 60025-7635
(847) 556-1707
(847) 556-1715

Map and Direction




Physician's Profile

Full NameMarek J Grzeskowiak
GenderMale
SpecialityFamily Medicine - Hospice And Palliative Medicine
Location2050 Claire Ct, Glenview, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1821259003
  • Provider Enumeration Date: 06/20/2008
  • Last Update Date: 03/01/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 2365630225
  • Enrollment ID: I20141117000411

Medical Identifiers

Medical identifiers for Marek J Grzeskowiak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821259003NPI-NPPES
GRZESMAROtherWIMERCYCARE INSURANCE
1821259003MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207QH0002XFamily Medicine - Hospice And Palliative Medicine 036126699 (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. Marek J Grzeskowiak allows following entities to bill medicare on his behalf.
Entity NameJourneycare, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154324994
PECOS PAC ID: 2062578305
Enrollment ID: O20090512000566
Entity NameNatarajan Medical Group Of Illinois Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639430861
PECOS PAC ID: 8921259748
Enrollment ID: O20121102000498

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. Marek J Grzeskowiak 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
Marek J Grzeskowiak, MD
2050 Claire Ct,
Glenview, IL 60025-7635

Ph: (847) 556-1707		Marek J Grzeskowiak, MD
2050 Claire Ct,
Glenview, IL 60025-7635

Ph: (847) 556-1707

Reviews and Comments


Family Medicine Doctors in Glenview, IL

Martin Kovachevich, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2050 Pfingsten Rd, Suite 330, Glenview, IL 60026
Phone: 847-998-4100    Fax: 847-998-8439
Leslie Mendoza Temple, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2400 Chestnut Ave, Suite A, Glenview, IL 60026
Phone: 847-657-3540    Fax: 847-657-3521
Dr. Deborah Elizabeth Miller, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2050 Pfingsten Rd Ste 200, Glenview, IL 60026
Phone: 847-657-1820    Fax: 847-657-1823
Khaldoun Dalbik, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2050 Pfingsten Rd, Glenview, IL 60026
Phone: 847-657-1810    
Dr. Ezechinyerem D Uzosike, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2050 Pfingsten Rd, Suite 200, Glenview, IL 60026
Phone: 847-657-1840    Fax: 847-657-1823
Rachael Libertin,
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 2050 Pfingsten Rd, Glenview, IL 60026
Phone: 847-657-1812    
Esther Francine Vergara, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1255 Milwaukee Ave, Glenview, IL 60025
Phone: 847-294-5490    Fax: 847-294-5496

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.