Dr Christopher Grant Chapman, MD - Medicare Gastroenterology in Chicago, IL

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Dr Christopher Grant Chapman, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Chicago, Illinois. He graduated from medical school in 2008 and has 17 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Rush University Medical Group and his current practice location is 5841 S Maryland Ave, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (773) 834-5122.

Dr Christopher Grant Chapman is licensed to practice in Illinois (license number 036128100) 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 1235378043.

Contact Information

Dr Christopher Grant Chapman, MD
5841 S Maryland Ave,
Chicago, IL 60637-1447
(773) 834-5122
Not Available

Map and Direction




Physician's Profile

Full NameDr Christopher Grant Chapman
GenderMale
SpecialityGastroenterology
Experience17 Years
Location5841 S Maryland Ave, Chicago, 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 Christopher Grant Chapman graduated from medical school in 2008
  NPI Data:
  • NPI Number: 1235378043
  • Provider Enumeration Date: 02/18/2009
  • Last Update Date: 11/08/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7719155357
  • Enrollment ID: I20110726000199

Medical Identifiers

Medical identifiers for Dr Christopher Grant Chapman such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235378043NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 35.146804 (Ohio)Secondary
207RG0100XInternal Medicine - Gastroenterology 036128100 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Rush University Medical CenterChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Rush University Medical Group54966588741134

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 Christopher Grant Chapman allows following entities to bill medicare on his behalf.
Entity NameUniversity Of Chicago
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821048786
PECOS PAC ID: 7719899426
Enrollment ID: O20031103000094
Entity NameFreeport Regional Health Care Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457337016
PECOS PAC ID: 9234041682
Enrollment ID: O20031104000182
Entity NameThe University Of Chicago Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033218128
PECOS PAC ID: 7618880766
Enrollment ID: O20031106000203
Entity NameRush University Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093819542
PECOS PAC ID: 5496658874
Enrollment ID: O20040202000228
Entity NameCarle Health Care Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154653947
PECOS PAC ID: 3577515774
Enrollment ID: O20100513000829

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 Christopher Grant Chapman 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 Christopher Grant Chapman, MD
180 Harvester Dr, Suite 110,
Burr Ridge, IL 60527-7594

Ph: (773) 702-1150		Dr Christopher Grant Chapman, MD
5841 S Maryland Ave,
Chicago, IL 60637-1447

Ph: (773) 834-5122

Reviews and Comments


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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.