Mark L Day, MD - Medicare Internal Medicine in Staunton, IL

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Mark L Day, MD is a medicare enrolled "Internal Medicine" physician in Staunton, Illinois. His current practice location is 400 N Caldwell St, Staunton, Illinois. You can reach out to his office (for appointments etc.) via phone at (618) 635-2200.

Mark L Day is licensed to practice in Illinois (license number 036.117437) 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 1174679237.

Contact Information

Mark L Day, MD
400 N Caldwell St,
Staunton, IL 62088-1173
(618) 635-2200
(618) 635-3400

Map and Direction




Physician's Profile

Full NameMark L Day
GenderMale
SpecialityInternal Medicine
Location400 N Caldwell St, Staunton, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1174679237
  • Provider Enumeration Date: 01/25/2007
  • Last Update Date: 09/29/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1254436439
  • Enrollment ID: I20070417000325

Medical Identifiers

Medical identifiers for Mark L Day such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1174679237NPI-NPPES
036117437OtherILILLIONIS MEDICAID

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 036.117437 (Illinois)Secondary
282NC0060XGeneral Acute Care Hospital - Critical Access (* (Not Available))Secondary
207R00000XInternal Medicine 036.117437 (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. Mark L Day allows following entities to bill medicare on his behalf.
Entity NameIllinois Emergency Physicians Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861633380
PECOS PAC ID: 2365341567
Enrollment ID: O20040107000479
Entity NameHillsboro Area Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821078213
PECOS PAC ID: 4486547148
Enrollment ID: O20040205000911
Entity NameSt Josephs Hospital Breese Of The Hospital Sisters Of The Third Order
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457319154
PECOS PAC ID: 9638064892
Enrollment ID: O20040217000493
Entity NameGibson Community Hospital Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114935681
PECOS PAC ID: 5092703124
Enrollment ID: O20040505001293
Entity NameHammond Henry Dist Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457344491
PECOS PAC ID: 0143115949
Enrollment ID: O20071211000175
Entity NameIllinois Emergency Staffing Solutions, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699915348
PECOS PAC ID: 7810044377
Enrollment ID: O20090421000050
Entity NameHcc Region Ii Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528237559
PECOS PAC ID: 1759453178
Enrollment ID: O20090529000084

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. Mark L Day 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
Mark L Day, MD
200 Corporate Blvd,
Lafayette, LA 70508-3870

Ph: (800) 893-9698		Mark L Day, MD
400 N Caldwell St,
Staunton, IL 62088-1173

Ph: (618) 635-2200

Reviews and Comments


Internal Medicine Doctors in Staunton, IL

Manish Mathur, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 444 N Edwardsville St, Staunton, IL 62088
Phone: 618-635-3800    Fax: 618-635-3952
Rajneesh Satish Jain, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 444 N Edwardsville St, Staunton, IL 62088
Phone: 618-635-3800    Fax: 618-635-3952

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.