Mrs Margaret Aikins Keup, APNP - Medicare Nurse Practitioner in Grafton, WI

Mrs Margaret Aikins Keup, APNP is a medicare enrolled "Nurse Practitioner - Acute Care" in Grafton, Wisconsin. She graduated from nursing school in 2014 and has 10 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Midwest Critical Care Sc and her current practice location is 975 Port Washington Rd, Grafton, Wisconsin. You can reach out to her office (for appointments etc.) via phone at (262) 329-1000.

Mrs Margaret Aikins Keup is licensed to practice in Wisconsin (license number 5585) 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 1023417169.

Contact Information

Mrs Margaret Aikins Keup, APNP
975 Port Washington Rd,
Grafton, WI 53024-9201
(262) 329-1000
Not Available

Map and Direction




Provider's Profile

Full NameMrs Margaret Aikins Keup
GenderFemale
SpecialityNurse Practitioner
Experience10 Years
Location975 Port Washington Rd, Grafton, Wisconsin
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:
  • Mrs Margaret Aikins Keup graduated from nursing school in 2014
  NPI Data:
  • NPI Number: 1023417169
  • Provider Enumeration Date: 08/14/2014
  • Last Update Date: 03/03/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5193945954
  • Enrollment ID: I20140930002103

Medical Identifiers

Medical identifiers for Mrs Margaret Aikins Keup such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023417169NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 5855 (Wisconsin)Secondary
363LA2200XNurse Practitioner - Adult Health 5585 (Wisconsin)Secondary
363LA2100XNurse Practitioner - Acute Care 5585 (Wisconsin)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ascension Columbia St Mary's Hospital MilwaukeeMilwaukee, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Midwest Critical Care Sc448602680431

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. Mrs Margaret Aikins Keup allows following entities to bill medicare on her behalf.
Entity NameAscension Medical Group-southeast Wisconsin Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609881077
PECOS PAC ID: 8628980943
Enrollment ID: O20031104000421
Entity NameGreater Milwaukee Critical Care And Pulmonary Associates Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952569816
PECOS PAC ID: 0244304558
Enrollment ID: O20080805000542
Entity NameMidwest Critical Care Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093425647
PECOS PAC ID: 4486026804
Enrollment ID: O20230214000166

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. Mrs Margaret Aikins Keup 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
Mrs Margaret Aikins Keup, APNP
975 Port Washington Rd,
Grafton, WI 53024-9201

Ph: (262) 329-1000
Mrs Margaret Aikins Keup, APNP
975 Port Washington Rd,
Grafton, WI 53024-9201

Ph: (262) 329-1000

Reviews and Comments


Nurse Practitioner Nurses in Grafton, WI

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Rebekah L Otte, NP
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Kaylee Lynn Popp, FNP-C
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Phone: 262-376-1934    
Patricia G Wilhelme, APNP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-1000    Fax: 262-329-1001
Jennifer A Krueger, NP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 975 Port Washington Rd, Grafton, WI 53024
Phone: 262-329-8600    

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.