Margaret E Gillis, MD - Medicare Emergency Medicine in Ann Arbor, MI

Margaret E Gillis, MD is a medicare enrolled "Emergency Medicine - Emergency Medical Services" physician in Ann Arbor, Michigan. Her current practice location is 5301 E Huron River Dr, Emergency Department Business Office, Ann Arbor, Michigan. You can reach out to her office (for appointments etc.) via phone at (734) 712-3962.

Margaret E Gillis is licensed to practice in Michigan (license number 079617) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1477590123.

Contact Information

Margaret E Gillis, MD
5301 E Huron River Dr, Emergency Department Business Office,
Ann Arbor, MI 48106
(734) 712-3962
Not Available

Map and Direction




Physician's Profile

Full NameMargaret E Gillis
GenderFemale
SpecialityEmergency Medicine - Emergency Medical Services
Location5301 E Huron River Dr, Ann Arbor, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1477590123
  • Provider Enumeration Date: 06/01/2006
  • Last Update Date: 12/20/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1850318007
  • Enrollment ID: I20051027000752

Medical Identifiers

Medical identifiers for Margaret E Gillis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477590123NPI-NPPES
104789596MedicaidMI
104789602MedicaidMI
MG079617OtherMIBC/BS

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207PE0004XEmergency Medicine - Emergency Medical Services 079617 (Michigan)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. Margaret E Gillis allows following entities to bill medicare on her behalf.
Entity NameEpmg Of Michigan Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386688992
PECOS PAC ID: 4789596339
Enrollment ID: O20040211000686
Entity NameSaint Joseph Mercy Livingston Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285753236
PECOS PAC ID: 8628964525
Enrollment ID: O20040301000934
Entity NameHospitalist Physicians Medical Group Of Michigan, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003978867
PECOS PAC ID: 4688778228
Enrollment ID: O20070409000434

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. Margaret E Gillis 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
Margaret E Gillis, MD
2000 Green Rd, Epmg Pc,
Ann Arbor, MI 48105-1598

Ph: () -
Margaret E Gillis, MD
5301 E Huron River Dr, Emergency Department Business Office,
Ann Arbor, MI 48106

Ph: (734) 712-3962

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.