Maria Rosario Ferreira, MD - Medicare Gastroenterology in Chicago, IL

Maria Rosario Ferreira, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Chicago, Illinois. She graduated from medical school in 1987 and has 37 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Northwestern Medical Faculty Foundation and her current practice location is 675 N Saint Clair St, Galter 17-250, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (312) 695-5620.

Maria Rosario Ferreira is licensed to practice in Illinois (license number 036087145) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1194755421.

Contact Information

Maria Rosario Ferreira, MD
675 N Saint Clair St, Galter 17-250,
Chicago, IL 60611-5975
(312) 695-5620
(312) 695-7095

Map and Direction




Physician's Profile

Full NameMaria Rosario Ferreira
GenderFemale
SpecialityGastroenterology
Experience37 Years
Location675 N Saint Clair St, Chicago, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Maria Rosario Ferreira graduated from medical school in 1987
  NPI Data:
  • NPI Number: 1194755421
  • Provider Enumeration Date: 07/03/2006
  • Last Update Date: 07/02/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 6406986603
  • Enrollment ID: I20100615000436

Medical Identifiers

Medical identifiers for Maria Rosario Ferreira such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194755421NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 036087145 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northwestern Memorial HospitalChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Northwestern Medical Faculty Foundation45875768143352

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. Maria Rosario Ferreira allows following entities to bill medicare on her behalf.
Entity NameNorthwestern Medical Faculty Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346235314
PECOS PAC ID: 4587576814
Enrollment ID: O20031105000541

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. Maria Rosario Ferreira 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
Maria Rosario Ferreira, MD
680 N Lake Shore Dr, Suite 1000,
Chicago, IL 60611-4546

Ph: (312) 695-5620
Maria Rosario Ferreira, MD
675 N Saint Clair St, Galter 17-250,
Chicago, IL 60611-5975

Ph: (312) 695-5620

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.