Margaret Reiker, - Medicare Internal Medicine in Saint Louis, MO

Margaret Reiker, is a medicare enrolled "Internal Medicine" physician in Saint Louis, Missouri. She went to Saint Louis University School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Mercy Hospitals East Communities, Mercy Clinic East Communities and her current practice location is 3009 N Ballas Rd, Suite 387c, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 996-5900.

Margaret Reiker is licensed to practice in Missouri (license number 103304) 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 1902915853.

Contact Information

Margaret Reiker,
3009 N Ballas Rd, Suite 387c,
Saint Louis, MO 63131-2322
(314) 996-5900
(314) 996-5910

Map and Direction




Physician's Profile

Full NameMargaret Reiker
GenderFemale
SpecialityInternal Medicine
Experience31 Years
Location3009 N Ballas Rd, Saint Louis, Missouri
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:
  • Margaret Reiker attended and graduated from Saint Louis University School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1902915853
  • Provider Enumeration Date: 08/30/2006
  • Last Update Date: 12/19/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 7012099898
  • Enrollment ID: I20080201000148

Medical Identifiers

Medical identifiers for Margaret Reiker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902915853NPI-NPPES
205230402MedicaidMO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 103304 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Amedisys Home Health Of MissouriHillsboro, MOHome health agency
Brookdale Home Health St LouisCreve coeur, MOHome health agency
Mercy HospiceSaint louis, MOHospice
Mercy Hospital St LouisSaint louis, MOHospital
Missouri Baptist Medical CenterTown and country, MOHospital
Mercy Hospital SouthSaint louis, MOHospital
St Lukes HospitalChesterfield, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Hospitals East Communities165827681191
Mercy Clinic East Communities7214827922499

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 Reiker allows following entities to bill medicare on her behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851335228
PECOS PAC ID: 7214827922
Enrollment ID: O20070521000006

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 Reiker 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 Reiker,
670 Mason Ridge Center Dr, Suite 300,
Saint Louis, MO 63141-8573

Ph: (314) 996-5900
Margaret Reiker,
3009 N Ballas Rd, Suite 387c,
Saint Louis, MO 63131-2322

Ph: (314) 996-5900

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.