Dr Mark Steven Reiter, MD - Medicare Internal Medicine in Oak Lawn, IL

Dr Mark Steven Reiter, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Oak Lawn, Illinois. He went to University Of Chicago, Pritzker School Of Medicine and graduated in 1981 and has 43 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 4400 W 95th St, Oak Lawn, Illinois. You can reach out to his office (for appointments etc.) via phone at (708) 499-2323.

Dr Mark Steven Reiter is licensed to practice in Illinois (license number ) 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 1902864408.

Contact Information

Dr Mark Steven Reiter, MD
4400 W 95th St,
Oak Lawn, IL 60453-2654
(708) 499-2323
(708) 499-2324

Map and Direction




Physician's Profile

Full NameDr Mark Steven Reiter
GenderMale
SpecialityInternal Medicine
Experience43 Years
Location4400 W 95th St, Oak Lawn, 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 Steven Reiter attended and graduated from University Of Chicago, Pritzker School Of Medicine in 1981
  NPI Data:
  • NPI Number: 1902864408
  • Provider Enumeration Date: 05/03/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5991997298
  • Enrollment ID: I20101005000737

Medical Identifiers

Medical identifiers for Dr Mark Steven Reiter such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902864408NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine (Illinois)Primary
207RG0300XInternal Medicine - Geriatric Medicine (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Palos Community Hospital Home Health CareLemont, ILHome health agency
Palos Community HospitalPalos heights, ILHospital
Advocate Christ Hospital & Medical CenterOak lawn, ILHospital

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 Steven Reiter allows following entities to bill medicare on his behalf.
Entity NameMark S Reiter Md Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013226703
PECOS PAC ID: 2365635976
Enrollment ID: O20101014001242

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 Steven Reiter 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 Steven Reiter, MD
4400 W 95th St,
Oak Lawn, IL 60453-2654

Ph: (708) 499-2323
Dr Mark Steven Reiter, MD
4400 W 95th St,
Oak Lawn, IL 60453-2654

Ph: (708) 499-2323

Reviews and Comments


Internal Medicine Doctors in Oak Lawn, IL

Darshika Chhabra, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4400 W 95th St Ste 112, Oak Lawn, IL 60453
Phone: 708-684-7100    
Ronald Myint, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4400 W 95th St, Suite 311, Oak Lawn, IL 60453
Phone: 708-424-9710    Fax: 708-424-8904
Dr. Mandy Luma Enshiwat, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4440 W 95th St, Oak Lawn, IL 60453
Phone: 708-684-8000    
Mahesh Vadali, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 10458 S Pulaski Rd, Oak Lawn, IL 60453
Phone: 708-636-1818    Fax: 708-636-2151
Mihaela Mihailescu, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4440 W 95th St, Oak Lawn, IL 60453
Phone: 708-684-8000    
Alexandria Clarke Kregor, DO
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4440 W 95th St, Oak Lawn, IL 60453
Phone: 708-684-5673    
Dr. Bruce M Abramowitz, M.D.,F.A.C.C.
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 10837 S Cicero Ave, Suite 200, Oak Lawn, IL 60453
Phone: 708-636-7575    Fax: 708-636-6193

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.